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Kovid Goyal 2021-11-28 19:03:52 +05:30
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docs/faq.rst
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@ -384,24 +384,23 @@ come from arenas in the GPU drivers and the per thread arenas glibc's malloc
maintains. These too allocate memory in large blocks and dont release it back
to the OS immediately.
Why is kitty slow to start?
___________________________
Why does kitty sometimes start slowly on my Linux system?
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|kitty| takes no longer to start than other similar GPU terminal emulators, (and
may be faster than some). If |kitty| takes a long time to start, it could be a
power managment issue of your graphics card. On a multi-GPU system (which many
modern laptops are, having a power efficient GPU that's built into the
processor and a power hungry dedicated one that's usually off), even if the
answer of the GPU will only be "don't use me", the GPU still needs to be woken
up to ask it. You can keep your GPU always on by looking for it in lspci::
|kitty| takes no longer (within a 100ms) to start than other similar GPU terminal emulators,
(and may be faster than some). If |kitty| occasionally takes a long time to
start, it could be a power management issue of the graphics card. On a
multi-GPU system (which many modern laptops are, having a power efficient GPU
that's built into the processor and a power hungry dedicated one that's usually
off), even if the answer of the GPU will only be "don't use me", the GPU still
needs to be woken up to ask it. You can keep your GPU always on by looking for
it in ``lspci``::
# lspci | grep NVIDIA
01:00.0 VGA compatible controller: NVIDIA Corporation GA106M [GeForce RTX 3060 Mobile / Max-Q] (rev a1)
01:00.1 Audio device: NVIDIA Corporation Device 228e (rev a1)
Then telling it to always be on::
# echo on > /sys/bus/pci/devices/0000':01:00.0'/power/control
On `at least one system<https://github.com/kovidgoyal/kitty/issues/4292>`_,
this saved ≈2 seconds of |kitty| instance start time.
On at least one system :iss:`4292`, this saved ≈2 seconds of |kitty| start up time.