diff options
Diffstat (limited to 'sys-kernel/linux-image-redcore/files/5.4-0012-Reinstate-default-Hz-of-100-in-combination-with-MuQS.patch')
| -rw-r--r-- | sys-kernel/linux-image-redcore/files/5.4-0012-Reinstate-default-Hz-of-100-in-combination-with-MuQS.patch | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/sys-kernel/linux-image-redcore/files/5.4-0012-Reinstate-default-Hz-of-100-in-combination-with-MuQS.patch b/sys-kernel/linux-image-redcore/files/5.4-0012-Reinstate-default-Hz-of-100-in-combination-with-MuQS.patch deleted file mode 100644 index 15429350..00000000 --- a/sys-kernel/linux-image-redcore/files/5.4-0012-Reinstate-default-Hz-of-100-in-combination-with-MuQS.patch +++ /dev/null @@ -1,81 +0,0 @@ -From 87dd1d82e1df3f3809fe39614061a33b01e5d6f0 Mon Sep 17 00:00:00 2001 -From: Con Kolivas <kernel@kolivas.org> -Date: Wed, 7 Dec 2016 21:23:01 +1100 -Subject: [PATCH 13/16] Reinstate default Hz of 100 in combination with MuQSS - and -ck patches. - ---- - kernel/Kconfig.hz | 25 ++++++++++++++++++------- - 1 file changed, 18 insertions(+), 7 deletions(-) - -diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz -index 38ef6d06888e..89ed751ac4e4 100644 ---- a/kernel/Kconfig.hz -+++ b/kernel/Kconfig.hz -@@ -5,7 +5,8 @@ - - choice - prompt "Timer frequency" -- default HZ_250 -+ default HZ_100 if SCHED_MUQSS -+ default HZ_250_NODEF if !SCHED_MUQSS - help - Allows the configuration of the timer frequency. It is customary - to have the timer interrupt run at 1000 Hz but 100 Hz may be more -@@ -20,11 +21,18 @@ choice - config HZ_100 - bool "100 HZ" - help -+ 100 Hz is a suitable choice in combination with MuQSS which does -+ not rely on ticks for rescheduling interrupts, and is not Hz limited -+ for timeouts and sleeps from both the kernel and userspace. -+ This allows us to benefit from the lower overhead and higher -+ throughput of fewer timer ticks. -+ -+ Non-MuQSS kernels: - 100 Hz is a typical choice for servers, SMP and NUMA systems - with lots of processors that may show reduced performance if - too many timer interrupts are occurring. - -- config HZ_250 -+ config HZ_250_NODEF - bool "250 HZ" - help - 250 Hz is a good compromise choice allowing server performance -@@ -32,7 +40,10 @@ choice - on SMP and NUMA systems. If you are going to be using NTSC video - or multimedia, selected 300Hz instead. - -- config HZ_300 -+ 250 Hz is the default choice for the mainline scheduler but not -+ advantageous in combination with MuQSS. -+ -+ config HZ_300_NODEF - bool "300 HZ" - help - 300 Hz is a good compromise choice allowing server performance -@@ -40,7 +51,7 @@ choice - on SMP and NUMA systems and exactly dividing by both PAL and - NTSC frame rates for video and multimedia work. - -- config HZ_1000 -+ config HZ_1000_NODEF - bool "1000 HZ" - help - 1000 Hz is the preferred choice for desktop systems and other -@@ -51,9 +62,9 @@ endchoice - config HZ - int - default 100 if HZ_100 -- default 250 if HZ_250 -- default 300 if HZ_300 -- default 1000 if HZ_1000 -+ default 250 if HZ_250_NODEF -+ default 300 if HZ_300_NODEF -+ default 1000 if HZ_1000_NODEF - - config SCHED_HRTICK - def_bool HIGH_RES_TIMERS --- -2.20.1 - |