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sys-fs/bcache-tools: Remove old
Signed-off-by: Michał Górny <mgorny@gentoo.org>
This commit is contained in:
Michał Górny
parent
d55b290972
commit
008f3a8f7a
@ -1,2 +1 @@
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DIST bcache-tools-1.1.tar.gz 34548 BLAKE2B e6ebc0f609debe0cc123deba0e21076441c37cdbc6edd02bf2c16c0e36fe806f1fc160b9e9baed577f86f6358884182a4e3903f34bccee81943191c0ba6a2d11 SHA512 4ccbef47255bf3644a50242a79951b1f3720e71a55eb1e07dc6b8486df0245da99a77bba751b50197d489b4c5d738e5284aabc014c2f7f44816ddf6a1bb807ca
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DIST bcache-tools-1.1_p20230217.tar.gz 44025 BLAKE2B c6e1c3e64d1f53f581cd6ea80b919bd7db93e0ec048de70e65cfa1b28ae59e921c7cdcf4c3d0f25823ab323f76ef29671bc2e3db616bad34e8c193aaa3a38c89 SHA512 aac047cb773ebc9e9c139f0a3da5721511a24265a497ce26fd607a26195d402ef78fa5f3c76d609195ee48267395527bd7083abe996e9fa3009b43ac85f94652
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@ -1,80 +0,0 @@
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# Copyright 1999-2023 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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PYTHON_COMPAT=( python3_{9..11} )
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inherit flag-o-matic python-r1 toolchain-funcs udev
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if [[ "${PV}" == "9999" ]]; then
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inherit git-r3
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EGIT_REPO_URI="https://git.kernel.org/pub/scm/linux/kernel/git/colyli/bcache-tools.git https://kernel.googlesource.com/pub/scm/linux/kernel/git/colyli/bcache-tools.git"
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else
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SRC_URI="https://git.kernel.org/pub/scm/linux/kernel/git/colyli/${PN}.git/snapshot/${P}.tar.gz"
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KEYWORDS="amd64 arm64 ~loong ppc ppc64 ~riscv x86"
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fi
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DESCRIPTION="Tools for bcache"
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HOMEPAGE="https://bcache.evilpiepirate.org/ https://git.kernel.org/pub/scm/linux/kernel/git/colyli/bcache-tools.git/"
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SLOT="0"
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LICENSE="GPL-2"
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REQUIRED_USE="${PYTHON_REQUIRED_USE}"
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RDEPEND="
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${PYTHON_DEPS}
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sys-apps/util-linux
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virtual/udev
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"
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DEPEND="${RDEPEND}"
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PATCHES=(
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"${FILESDIR}"/1.0.8_p20140220/bcache-tools-1.0.8-noprobe.patch
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"${FILESDIR}"/${PV}/bcache-tools-add-bcache-status.patch
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"${FILESDIR}"/${PV}/bcache-tools-add-man-page-bcache-status.8.patch
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)
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src_prepare() {
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default
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tc-export CC
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sed \
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-e '/^CFLAGS/s:-O2::' \
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-e '/^CFLAGS/s:-g::' \
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-i Makefile || die
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append-lfs-flags
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}
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src_install() {
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into /
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dosbin bcache make-bcache bcache-super-show
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exeinto $(get_udevdir)
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doexe bcache-register probe-bcache
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python_foreach_impl python_doscript bcache-status
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udev_dorules 69-bcache.rules
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insinto /etc/initramfs-tools/hooks/bcache
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doins initramfs/hook
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# that is what dracut does
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insinto /usr/lib/dracut/modules.d/90bcache
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doins dracut/module-setup.sh
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doman *.8
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dodoc README
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}
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pkg_postinst() {
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udev_reload
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}
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pkg_postrm() {
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udev_reload
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}
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@ -1,32 +0,0 @@
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diff -ruN bcache-tools-1.0.8.orig/69-bcache.rules bcache-tools-1.0.8/69-bcache.rules
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--- bcache-tools-1.0.8.orig/69-bcache.rules 2014-12-04 23:51:24.000000000 +0100
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+++ bcache-tools-1.0.8/69-bcache.rules 2014-12-05 19:38:42.284643952 +0100
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@@ -7,17 +7,10 @@
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KERNEL=="fd*|sr*", GOTO="bcache_end"
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# blkid was run by the standard udev rules
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-# It recognised bcache (util-linux 2.24+)
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-ENV{ID_FS_TYPE}=="bcache", GOTO="bcache_backing_found"
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-# It recognised something else; bail
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-ENV{ID_FS_TYPE}=="?*", GOTO="bcache_backing_end"
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-
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# Backing devices: scan, symlink, register
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-IMPORT{program}="probe-bcache -o udev $tempnode"
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ENV{ID_FS_TYPE}!="bcache", GOTO="bcache_backing_end"
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ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+="disk/by-uuid/$env{ID_FS_UUID_ENC}"
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-LABEL="bcache_backing_found"
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RUN{builtin}+="kmod load bcache"
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RUN+="bcache-register $tempnode"
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LABEL="bcache_backing_end"
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diff -ruN bcache-tools-1.0.8.orig/dracut/module-setup.sh bcache-tools-1.0.8/dracut/module-setup.sh
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--- bcache-tools-1.0.8.orig/dracut/module-setup.sh 2014-12-04 23:51:24.000000000 +0100
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+++ bcache-tools-1.0.8/dracut/module-setup.sh 2014-12-05 19:32:37.771480651 +0100
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@@ -29,6 +29,6 @@
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}
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install() {
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- inst_multiple ${udevdir}/probe-bcache ${udevdir}/bcache-register
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+ inst_multiple ${udevdir}/bcache-register
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inst_rules 69-bcache.rules
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}
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@ -1,381 +0,0 @@
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From 10824170800268e91508e2edc6ed745f40370f0a Mon Sep 17 00:00:00 2001
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From: Coly Li <colyli@suse.de>
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Date: Wed, 2 Sep 2020 19:27:08 +0800
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Subject: [PATCH 1/2] bcache-tools: add bcache-status
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People request to include bcache-status into bcache-tools package. This
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patch picks bcache-status script from github page of the orginal author
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Darrick J. Wong,
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https://github.com/djwong/bcache-tools/blob/master/bcache-status
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Thanks to Darrick for writing the great bcache-status, and I will keep
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this script being updated from Darrick's repo time to time.
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Signed-off-by: Coly Li <colyli@suse.de>
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Cc: Darrick J. Wong <darrick.wong@oracle.com>
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---
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bcache-status | 352 ++++++++++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 352 insertions(+)
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create mode 100755 bcache-status
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diff --git a/bcache-status b/bcache-status
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new file mode 100755
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index 0000000..ac5a22f
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--- /dev/null
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+++ b/bcache-status
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@@ -0,0 +1,352 @@
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+#!/usr/bin/env python
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+#
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+# Dumb script to dump (some) of bcache status
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+# Copyright 2014 Darrick J. Wong. All rights reserved.
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+#
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+# This file is part of Bcache. Bcache is free software: you can
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+# redistribute it and/or modify it under the terms of the GNU General Public
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+# License as published by the Free Software Foundation, version 2.
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+#
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+# This program is distributed in the hope that it will be useful, but WITHOUT
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+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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+# details.
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+#
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+# You should have received a copy of the GNU General Public License along with
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+# this program; if not, write to the Free Software Foundation, Inc., 51
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+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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+#
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+
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+import os
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+import sys
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+import argparse
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+
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+MAX_KEY_LENGTH = 28
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+DEV_BLOCK_PATH = '/dev/block/'
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+SYSFS_BCACHE_PATH = '/sys/fs/bcache/'
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+SYSFS_BLOCK_PATH = '/sys/block/'
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+
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+def file_to_lines(fname):
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+ try:
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+ with open(fname, "r") as fd:
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+ return fd.readlines()
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+ except:
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+ return []
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+
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+def file_to_line(fname):
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+ ret = file_to_lines(fname)
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+ if ret:
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+ return ret[0].strip()
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+ return ''
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+
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+def str_to_bool(x):
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+ return x == '1'
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+
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+def format_sectors(x):
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+ '''Pretty print a sector count.'''
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+ sectors = float(x)
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+ asectors = abs(sectors)
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+
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+ if asectors < 2:
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+ return '%d B' % (sectors * 512)
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+ elif asectors < 2048:
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+ return '%.2f KiB' % (sectors / 2)
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+ elif asectors < 2097152:
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+ return '%.1f MiB' % (sectors / 2048)
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+ elif asectors < 2147483648:
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+ return '%.0f GiB' % (sectors / 2097152)
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+ else:
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+ return '%.0f TiB' % (sectors / 2147483648)
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+
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+def interpret_sectors(x):
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+ '''Interpret a pretty-printed disk size.'''
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+ factors = {
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+ 'k': 1 << 10,
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+ 'M': 1 << 20,
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+ 'G': 1 << 30,
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+ 'T': 1 << 40,
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+ 'P': 1 << 50,
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+ 'E': 1 << 60,
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+ 'Z': 1 << 70,
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+ 'Y': 1 << 80,
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+ }
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+
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+ factor = 1
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+ if x[-1] in factors:
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+ factor = factors[x[-1]]
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+ x = x[:-1]
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+ return int(float(x) * factor / 512)
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+
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+def pretty_size(x):
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+ return format_sectors(interpret_sectors(x))
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+
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+def device_path(x):
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+ if not os.path.isdir(DEV_BLOCK_PATH):
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+ return '?'
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+ x = '%s/%s' % (DEV_BLOCK_PATH, x)
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+ return os.path.abspath(os.path.join(os.path.dirname(x), os.readlink(x)))
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+
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+def str_device_path(x):
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+ return '%s (%s)' % (device_path(x), x)
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+
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+def dump_bdev(bdev_path):
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+ '''Dump a backing device stats.'''
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+ global MAX_KEY_LENGTH
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+ attrs = [
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+ ('../dev', 'Device File', str_device_path),
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+ ('dev/dev', 'bcache Device File', str_device_path),
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+ ('../size', 'Size', format_sectors),
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+ ('cache_mode', 'Cache Mode', None),
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+ ('readahead', 'Readahead', None),
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+ ('sequential_cutoff', 'Sequential Cutoff', pretty_size),
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+ ('sequential_merge', 'Merge sequential?', str_to_bool),
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+ ('state', 'State', None),
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+ ('writeback_running', 'Writeback?', str_to_bool),
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+ ('dirty_data', 'Dirty Data', pretty_size),
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+ ('writeback_rate', 'Writeback Rate', lambda x: '%s/s' % x),
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+ ('writeback_percent', 'Dirty Target', lambda x: '%s%%' % x),
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+ ]
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+
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+ print('--- Backing Device ---')
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+ for (sysfs_name, display_name, conversion_func) in attrs:
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+ val = file_to_line('%s/%s' % (bdev_path, sysfs_name))
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+ if conversion_func is not None:
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+ val = conversion_func(val)
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+ if display_name is None:
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+ display_name = sysfs_name
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+ print(' %-*s%s' % (MAX_KEY_LENGTH - 2, display_name, val))
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+
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+def dump_cachedev(cachedev_path):
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+ '''Dump a cachding device stats.'''
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+ def fmt_cachesize(val):
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+ return '%s\t(%.0f%%)' % (format_sectors(val), float(val) / cache_size * 100)
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+
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+ global MAX_KEY_LENGTH
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+ attrs = [
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+ ('../dev', 'Device File', str_device_path),
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+ ('../size', 'Size', format_sectors),
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+ ('block_size', 'Block Size', pretty_size),
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+ ('bucket_size', 'Bucket Size', pretty_size),
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+ ('cache_replacement_policy', 'Replacement Policy', None),
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+ ('discard', 'Discard?', str_to_bool),
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+ ('io_errors', 'I/O Errors', None),
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+ ('metadata_written', 'Metadata Written', pretty_size),
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+ ('written', 'Data Written', pretty_size),
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+ ('nbuckets', 'Buckets', None),
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+ (None, 'Cache Used', lambda x: fmt_cachesize(used_sectors)),
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+ (None, 'Cache Unused', lambda x: fmt_cachesize(unused_sectors)),
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+ ]
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+
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+ stats = get_cache_priority_stats(cachedev_path)
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+ cache_size = int(file_to_line('%s/../size' % cachedev_path))
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+ unused_sectors = float(stats['Unused'][:-1]) * cache_size / 100
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+ used_sectors = cache_size - unused_sectors
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+
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+ print('--- Cache Device ---')
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+ for (sysfs_name, display_name, conversion_func) in attrs:
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+ if sysfs_name is not None:
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+ val = file_to_line('%s/%s' % (cachedev_path, sysfs_name))
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+ if conversion_func is not None:
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+ val = conversion_func(val)
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+ if display_name is None:
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+ display_name = sysfs_name
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+ print(' %-*s%s' % (MAX_KEY_LENGTH - 2, display_name, val))
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+
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+def hits_to_str(hits_str, misses_str):
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+ '''Render a hits/misses ratio as a string.'''
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+ hits = int(hits_str)
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+ misses = int(misses_str)
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+
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+ ret = '%d' % hits
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+ if hits + misses != 0:
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+ ret = '%s\t(%.d%%)' % (ret, 100 * hits / (hits + misses))
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+ return ret
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+
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+def dump_stats(sysfs_path, indent_str, stats):
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+ '''Dump stats on a bcache device.'''
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+ stat_types = [
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+ ('five_minute', 'Last 5min'),
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+ ('hour', 'Last Hour'),
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+ ('day', 'Last Day'),
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+ ('total', 'Total'),
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+ ]
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+ attrs = ['bypassed', 'cache_bypass_hits', 'cache_bypass_misses', 'cache_hits', 'cache_misses']
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+ display = [
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+ ('Hits', lambda: hits_to_str(stat_data['cache_hits'], stat_data['cache_misses'])),
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+ ('Misses', lambda: stat_data['cache_misses']),
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+ ('Bypass Hits', lambda: hits_to_str(stat_data['cache_bypass_hits'], stat_data['cache_bypass_misses'])),
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+ ('Bypass Misses', lambda: stat_data['cache_bypass_misses']),
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+ ('Bypassed', lambda: pretty_size(stat_data['bypassed'])),
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+ ]
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+
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+ for (sysfs_name, stat_display_name) in stat_types:
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+ if len(stats) > 0 and sysfs_name not in stats:
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+ continue
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+ stat_data = {}
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+ for attr in attrs:
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+ val = file_to_line('%s/stats_%s/%s' % (sysfs_path, sysfs_name, attr))
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+ stat_data[attr] = val
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+ for (display_name, str_func) in display:
|
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+ d = '%s%s %s' % (indent_str, stat_display_name, display_name)
|
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+ print('%-*s%s' % (MAX_KEY_LENGTH, d, str_func()))
|
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+
|
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+def get_cache_priority_stats(cache):
|
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+ '''Retrieve priority stats from a cache.'''
|
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+ attrs = {}
|
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+
|
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+ for line in file_to_lines('%s/priority_stats' % cache):
|
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+ x = line.split()
|
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+ key = x[0]
|
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+ value = x[1]
|
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+ attrs[key[:-1]] = value
|
||||
+ return attrs
|
||||
+
|
||||
+def dump_bcache(bcache_sysfs_path, stats, print_subdevices, device):
|
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+ '''Dump bcache stats'''
|
||||
+ def fmt_cachesize(val):
|
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+ return '%s\t(%.0f%%)' % (format_sectors(val), 100.0 * val / cache_sectors)
|
||||
+
|
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+ attrs = [
|
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+ (None, 'UUID', lambda x: os.path.basename(bcache_sysfs_path)),
|
||||
+ ('block_size', 'Block Size', pretty_size),
|
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+ ('bucket_size', 'Bucket Size', pretty_size),
|
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+ ('congested', 'Congested?', str_to_bool),
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+ ('congested_read_threshold_us', 'Read Congestion', lambda x: '%.1fms' % (int(x) / 1000)),
|
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+ ('congested_write_threshold_us', 'Write Congestion', lambda x: '%.1fms' % (int(x) / 1000)),
|
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+ (None, 'Total Cache Size', lambda x: format_sectors(cache_sectors)),
|
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+ (None, 'Total Cache Used', lambda x: fmt_cachesize(cache_used_sectors)),
|
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+ (None, 'Total Cache Unused', lambda x: fmt_cachesize(cache_unused_sectors)),
|
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+ #('dirty_data', 'Dirty Data', lambda x: fmt_cachesize(interpret_sectors(x))), # disappeared in 3.13?
|
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+ ('cache_available_percent', 'Evictable Cache', lambda x: '%s\t(%s%%)' % (format_sectors(float(x) * cache_sectors / 100), x)),
|
||||
+ (None, 'Replacement Policy', lambda x: replacement_policies.pop() if len(replacement_policies) == 1 else '(Various)'),
|
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+ (None, 'Cache Mode', lambda x: cache_modes.pop() if len(cache_modes) == 1 else '(Various)'),
|
||||
+ ]
|
||||
+
|
||||
+ # Calculate aggregate data
|
||||
+ cache_sectors = 0
|
||||
+ cache_unused_sectors = 0
|
||||
+ cache_modes = set()
|
||||
+ replacement_policies = set()
|
||||
+ for obj in os.listdir(bcache_sysfs_path):
|
||||
+ if not os.path.isdir('%s/%s' % (bcache_sysfs_path, obj)):
|
||||
+ continue
|
||||
+ if obj.startswith('cache'):
|
||||
+ cache_size = int(file_to_line('%s/%s/../size' % (bcache_sysfs_path, obj)))
|
||||
+ cache_sectors += cache_size
|
||||
+ cstats = get_cache_priority_stats('%s/%s' % (bcache_sysfs_path, obj))
|
||||
+ unused_size = float(cstats['Unused'][:-1]) * cache_size / 100
|
||||
+ cache_unused_sectors += unused_size
|
||||
+ replacement_policies.add(file_to_line('%s/%s/cache_replacement_policy' % (bcache_sysfs_path, obj)))
|
||||
+ elif obj.startswith('bdev'):
|
||||
+ cache_modes.add(file_to_line('%s/%s/cache_mode' % (bcache_sysfs_path, obj)))
|
||||
+ cache_used_sectors = cache_sectors - cache_unused_sectors
|
||||
+
|
||||
+ # Dump basic stats
|
||||
+ print("--- bcache ---")
|
||||
+ for (sysfs_name, display_name, conversion_func) in attrs:
|
||||
+ if sysfs_name is not None:
|
||||
+ val = file_to_line('%s/%s' % (bcache_sysfs_path, sysfs_name))
|
||||
+ else:
|
||||
+ val = None
|
||||
+ if conversion_func is not None:
|
||||
+ val = conversion_func(val)
|
||||
+ if display_name is None:
|
||||
+ display_name = sysfs_name
|
||||
+ print('%-*s%s' % (MAX_KEY_LENGTH, display_name, val))
|
||||
+ dump_stats(bcache_sysfs_path, '', stats)
|
||||
+
|
||||
+ # Dump sub-device stats
|
||||
+ if not print_subdevices:
|
||||
+ return
|
||||
+ for obj in os.listdir(bcache_sysfs_path):
|
||||
+ if not os.path.isdir('%s/%s' % (bcache_sysfs_path, obj)):
|
||||
+ continue
|
||||
+ if obj.startswith('bdev'):
|
||||
+ dump_bdev('%s/%s' % (bcache_sysfs_path, obj))
|
||||
+ dump_stats('%s/%s' % (bcache_sysfs_path, obj), ' ', stats)
|
||||
+ elif obj.startswith('cache'):
|
||||
+ dump_cachedev('%s/%s' % (bcache_sysfs_path, obj))
|
||||
+
|
||||
+def map_uuid_to_device():
|
||||
+ '''Map bcache UUIDs to device files.'''
|
||||
+ global SYSFS_BLOCK_PATH
|
||||
+ ret = {}
|
||||
+
|
||||
+ if not os.path.isdir(SYSFS_BLOCK_PATH):
|
||||
+ return ret
|
||||
+ for bdev in os.listdir(SYSFS_BLOCK_PATH):
|
||||
+ link = '%s%s/bcache/cache' % (SYSFS_BLOCK_PATH, bdev)
|
||||
+ if not os.path.islink(link):
|
||||
+ continue
|
||||
+ basename = os.path.basename(os.readlink(link))
|
||||
+ ret[basename] = file_to_line('%s%s/dev' % (SYSFS_BLOCK_PATH, bdev))
|
||||
+ return ret
|
||||
+
|
||||
+def main():
|
||||
+ '''Main function'''
|
||||
+ global SYSFS_BCACHE_PATH
|
||||
+ global uuid_map
|
||||
+ stats = set()
|
||||
+ reset_stats = False
|
||||
+ print_subdevices = False
|
||||
+ run_gc = False
|
||||
+
|
||||
+ parser = argparse.ArgumentParser(add_help=False)
|
||||
+ parser.add_argument('--help', help='Show this help message and exit', action='store_true')
|
||||
+ parser.add_argument('-f', '--five-minute', help='Print the last five minutes of stats.', action='store_true')
|
||||
+ parser.add_argument('-h', '--hour', help='Print the last hour of stats.', action='store_true')
|
||||
+ parser.add_argument('-d', '--day', help='Print the last day of stats.', action='store_true')
|
||||
+ parser.add_argument('-t', '--total', help='Print total stats.', action='store_true')
|
||||
+ parser.add_argument('-a', '--all', help='Print all stats.', action='store_true')
|
||||
+ parser.add_argument('-r', '--reset-stats', help='Reset stats after printing them.', action='store_true')
|
||||
+ parser.add_argument('-s', '--sub-status', help='Print subdevice status.', action='store_true')
|
||||
+ parser.add_argument('-g', '--gc', help='Invoke GC before printing status.', action='store_true')
|
||||
+ args = parser.parse_args()
|
||||
+
|
||||
+ if args.help:
|
||||
+ parser.print_help()
|
||||
+ return 0
|
||||
+
|
||||
+ if args.five_minute:
|
||||
+ stats.add('five_minute')
|
||||
+ if args.hour:
|
||||
+ stats.add('hour')
|
||||
+ if args.day:
|
||||
+ stats.add('day')
|
||||
+ if args.total:
|
||||
+ stats.add('total')
|
||||
+ if args.all:
|
||||
+ stats.add('five_minute')
|
||||
+ stats.add('hour')
|
||||
+ stats.add('day')
|
||||
+ stats.add('total')
|
||||
+ if args.reset_stats:
|
||||
+ reset_stats = True
|
||||
+ if args.sub_status:
|
||||
+ print_subdevices = True
|
||||
+ if args.gc:
|
||||
+ run_gc = True
|
||||
+
|
||||
+ if not stats:
|
||||
+ stats.add('total')
|
||||
+
|
||||
+ uuid_map = map_uuid_to_device()
|
||||
+ if not os.path.isdir(SYSFS_BCACHE_PATH):
|
||||
+ print('bcache is not loaded.')
|
||||
+ return
|
||||
+ for cache in os.listdir(SYSFS_BCACHE_PATH):
|
||||
+ if not os.path.isdir('%s%s' % (SYSFS_BCACHE_PATH, cache)):
|
||||
+ continue
|
||||
+
|
||||
+ if run_gc:
|
||||
+ with open('%s%s/internal/trigger_gc' % (SYSFS_BCACHE_PATH, cache), 'w') as fd:
|
||||
+ fd.write('1\n')
|
||||
+
|
||||
+ dump_bcache('%s%s' % (SYSFS_BCACHE_PATH, cache), stats, print_subdevices, uuid_map.get(cache, '?'))
|
||||
+
|
||||
+ if reset_stats:
|
||||
+ with open('%s%s/clear_stats' % (SYSFS_BCACHE_PATH, cache), 'w') as fd:
|
||||
+ fd.write('1\n')
|
||||
+
|
||||
+if __name__ == '__main__':
|
||||
+ main()
|
||||
--
|
||||
2.28.0
|
||||
|
||||
@ -1,69 +0,0 @@
|
||||
From 91fd5fb518ae535e36cff1ae188d1bcef874cf40 Mon Sep 17 00:00:00 2001
|
||||
From: Coly Li <colyli@suse.de>
|
||||
Date: Wed, 2 Sep 2020 20:09:06 +0800
|
||||
Subject: [PATCH 2/2] bcache-tools: add man page bcache-status.8
|
||||
|
||||
Add the initial man page for bcache-status.
|
||||
|
||||
Signed-off-by: Coly Li <colyli@suse.de>
|
||||
---
|
||||
bcache-status.8 | 47 +++++++++++++++++++++++++++++++++++++++++++++++
|
||||
1 file changed, 47 insertions(+)
|
||||
create mode 100644 bcache-status.8
|
||||
|
||||
diff --git a/bcache-status.8 b/bcache-status.8
|
||||
new file mode 100644
|
||||
index 0000000..f56cfb6
|
||||
--- /dev/null
|
||||
+++ b/bcache-status.8
|
||||
@@ -0,0 +1,47 @@
|
||||
+.TH bcache-status 8
|
||||
+.SH NAME
|
||||
+bcache-status \- Display useful bcache statistics
|
||||
+
|
||||
+.SH SYNOPSIS
|
||||
+.B bcache-status [ --help ] [ -f ] [ -h ] [ -d ] [ -t ] [ -a ] [ -r ] [ -s ] [ -g ]
|
||||
+
|
||||
+.SH DESCRIPTION
|
||||
+This command displays useful bcache statistics in a convenient way.
|
||||
+
|
||||
+.SH OPTIONS
|
||||
+
|
||||
+.TP
|
||||
+.BR \-\-help
|
||||
+Print help message and exit.
|
||||
+
|
||||
+.TP
|
||||
+.BR \-f ", " \-\-five\-minute
|
||||
+Print the last five minutes of stats.
|
||||
+
|
||||
+.TP
|
||||
+.BR \-h ", " \-\-hour
|
||||
+Print the last hour of stats.
|
||||
+
|
||||
+.TP
|
||||
+.BR \-d ", " \-\-day
|
||||
+Print the last day of stats.
|
||||
+
|
||||
+.TP
|
||||
+.BR \-t ", " \-\-total
|
||||
+Print total stats.
|
||||
+
|
||||
+.TP
|
||||
+.BR \-a ", " \-\-all
|
||||
+Print all stats.
|
||||
+
|
||||
+.TP
|
||||
+.BR \-r ", " \-\-reset\-stats
|
||||
+Reset stats after printing them.
|
||||
+
|
||||
+.TP
|
||||
+.BR \-s ", " \-\-sub\-status
|
||||
+Print subdevice status.
|
||||
+
|
||||
+.TP
|
||||
+.BR \-g ", " \-\-gc
|
||||
+Invoke GC before printing status (root only).
|
||||
--
|
||||
2.28.0
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user