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linux-cachyos-rc: Use lazy preemption by default #373

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linux-cachyos-rc: Use lazy preemption by default #373

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097507f
linux-cachyos-rc: Disable dynamic preemption
1Naim Jan 6, 2025
07f78a6
linux-cachyos-rc: Default to lazy preemption
1Naim Jan 6, 2025
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2 changes: 1 addition & 1 deletion linux-cachyos-rc/.SRCINFO
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@ pkgbase = linux-cachyos-rc
source = https://raw.githubusercontent.com/cachyos/kernel-patches/master/6.13/misc/dkms-clang.patch
source = https://raw.githubusercontent.com/cachyos/kernel-patches/master/6.13/sched/0001-bore-cachy.patch
b2sums = e82921a5852d76802004fa3764f60a916b5a2382d81ec593b63421bdfd09a2222c8afe91905abcbb1d9a4bbb270808cb247ca7f63f1db70abba39c7507133834
b2sums = 9f099de709e971acfb9463ac96810a0ddfbd669dd8af891c7301e9ae463130a0ece65ce0c6ec35af62fcb4ed921e15870ec9db29f74b7f9d9017ff268b43d2d5
b2sums = a25adc740f32d32708fc4d608656d62ce8cbfd4503c58c602927eb63d4ccdda09d49def4be718c220209c30cefebf33c3759e13c5fa4ccc862b15e416877c3e7
b2sums = 390c7b80608e9017f752b18660cc18ad1ec69f0aab41a2edfcfc26621dcccf5c7051c9d233d9bdf1df63d5f1589549ee0ba3a30e43148509d27dafa9102c19ab
b2sums = 4bb8bbbaea6669663e2b4d4879dba05d352fd3fb5b8d9b9889d0c3ffcb8c46a6d5f63a167c64470ea6ea17e1046c7d297c7139edc8da0df2ae7636d20e311619
b2sums = c7294a689f70b2a44b0c4e9f00c61dbd59dd7063ecbe18655c4e7f12e21ed7c5bb4f5169f5aa8623b1c59de7b2667facb024913ecb9f4c650dabce4e8a7e5452
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6 changes: 3 additions & 3 deletions linux-cachyos-rc/PKGBUILD
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Expand Up @@ -77,7 +77,7 @@ _HZ_ticks=${_HZ_ticks-1000}
_tickrate=${_tickrate-full}

## Choose between full(low-latency), lazy, voluntary or none
_preempt=${_preempt-full}
_preempt=${_preempt-lazy}

### Transparent Hugepages
# ATTENTION - one of two predefined values should be selected!
Expand Down Expand Up @@ -423,7 +423,7 @@ prepare() {

case "$_preempt" in
full) scripts/config -e PREEMPT_DYNAMIC -e PREEMPT -d PREEMPT_VOLUNTARY -d PREEMPT_LAZY -d PREEMPT_NONE;;
lazy) scripts/config -e PREEMPT_DYNAMIC -d PREEMPT -d PREEMPT_VOLUNTARY -e PREEMPT_LAZY -d PREEMPT_NONE;;
lazy) scripts/config -d PREEMPT_DYNAMIC -d PREEMPT -d PREEMPT_VOLUNTARY -e PREEMPT_LAZY -d PREEMPT_NONE;;
voluntary) scripts/config -d PREEMPT_DYNAMIC -e PREEMPT_VOLUNTARY_BUILD -d PREEMPT -e PREEMPT_VOLUNTARY -d PREEMPT_LAZY -d PREEMPT_NONE;;
none) scripts/config -d PREEMPT_DYNAMIC -e PREEMPT_NONE_BUILD -d PREEMPT -d PREEMPT_VOLUNTARY -d PREEMPT_LAZY -e PREEMPT_NONE;;
*) _die "The value '$_preempt' is invalid. Choose the correct one again.";;
Expand Down Expand Up @@ -832,7 +832,7 @@ for _p in "${pkgname[@]}"; do
done

b2sums=('e82921a5852d76802004fa3764f60a916b5a2382d81ec593b63421bdfd09a2222c8afe91905abcbb1d9a4bbb270808cb247ca7f63f1db70abba39c7507133834'
'9f099de709e971acfb9463ac96810a0ddfbd669dd8af891c7301e9ae463130a0ece65ce0c6ec35af62fcb4ed921e15870ec9db29f74b7f9d9017ff268b43d2d5'
'a25adc740f32d32708fc4d608656d62ce8cbfd4503c58c602927eb63d4ccdda09d49def4be718c220209c30cefebf33c3759e13c5fa4ccc862b15e416877c3e7'
'390c7b80608e9017f752b18660cc18ad1ec69f0aab41a2edfcfc26621dcccf5c7051c9d233d9bdf1df63d5f1589549ee0ba3a30e43148509d27dafa9102c19ab'
'4bb8bbbaea6669663e2b4d4879dba05d352fd3fb5b8d9b9889d0c3ffcb8c46a6d5f63a167c64470ea6ea17e1046c7d297c7139edc8da0df2ae7636d20e311619'
'c7294a689f70b2a44b0c4e9f00c61dbd59dd7063ecbe18655c4e7f12e21ed7c5bb4f5169f5aa8623b1c59de7b2667facb024913ecb9f4c650dabce4e8a7e5452'
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2 changes: 1 addition & 1 deletion linux-cachyos-rc/config
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Expand Up @@ -140,7 +140,7 @@ CONFIG_PREEMPT=y
# CONFIG_PREEMPT_RT is not set
CONFIG_PREEMPT_COUNT=y
CONFIG_PREEMPTION=y
CONFIG_PREEMPT_DYNAMIC=y
# CONFIG_PREEMPT_DYNAMIC is not set
CONFIG_SCHED_CORE=y
CONFIG_SCHED_CLASS_EXT=y

Expand Down