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| author | Petr Lautrbach <plautrba@redhat.com> | 2010-12-03 15:49:30 +0100 |
|---|---|---|
| committer | Petr Lautrbach <plautrba@redhat.com> | 2010-12-06 18:18:35 +0100 |
| commit | 186bdd8c5d57c2273c46990e306e1a9aef9a4da2 (patch) | |
| tree | 3864a2855724d457e8dd16cff740d915b2c51d1e /sysctl.conf.s390 | |
| parent | 7ea0e422f14deb956886c7fc7c13eb4e6ed3e57c (diff) | |
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sysctl.conf.s390 - system z optimized sysctl settings per default (#633323)
Diffstat (limited to 'sysctl.conf.s390')
| -rw-r--r-- | sysctl.conf.s390 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sysctl.conf.s390 b/sysctl.conf.s390 index 2391d334..dc7d085a 100644 --- a/sysctl.conf.s390 +++ b/sysctl.conf.s390 @@ -18,3 +18,13 @@ kernel.core_uses_pid = 1 # Controls the use of TCP syncookies net.ipv4.tcp_syncookies = 1 + +# Do not spend as much process time too early to write out dirty pages +vm.dirty_ratio = 40 + +# Increase the average time a process runs continuously and also improve the +# cache utilization and server style workload throughput at minor latency cost +kernel.sched_min_granularity_ns = 10000000 +kernel.sched_wakeup_granularity_ns = 15000000 +kernel.sched_tunable_scaling = 0 +kernel.sched_latency_ns = 80000000 |