Linux核心排程器 CFS調優

echo 10000000 > /proc/sys/kernel/sched_min_granularity_ns

echo 15000000 > /proc/sys/kernel/sched_wakeup_granularity_ns

echo 10 > /proc/sys/kernel/sched_nr_migrate

echo 1000000 > /proc/sys/kernel/sched_migration_cost

linux排程器（九）——排程器的配置參數: http://blog.csdn.net/wudongxu/article/details/8574753

http://www.oschina.net/question/234345_48082

http://bbs.gfan.com/android-5357558-1-1.html

使用完全公平排程程式（CFS）進行多任務處理: http://www.ibm.com/developerworks/cn/linux/l-cfs/

[[email protected] ~]# sysctl -A|grep "sched" | grep -v "domain"

kernel.sched_min_granularity_ns = 4000000

kernel.sched_latency_ns = 40000000

kernel.sched_wakeup_granularity_ns = 2000000

kernel.sched_batch_wakeup_granularity_ns = 25000000

kernel.sched_stat_granularity_ns = 0

kernel.sched_runtime_limit_ns = 40000000

kernel.sched_child_runs_first = 1

kernel.sched_features = 29

kernel.sched_compat_yield = 0

[[email protected] ~]#

http://artipc10.vub.ac.be/wordpress/2011/05/27/linux-performance-improvements/

CFS scheduler tuning

CFS (Competely Fair Scheduler) is the name of the Linux process scheduler. By default it is tuned for desktop workloads. For server systems where throughput is more important than latency, Red Hat’s tuned package proposes these sysctl settings for CFS for servers:

kernel.sched_min_granularity_ns = 10000000

kernel.sched_wakeup_granularity_ns = 15000000

https://www.kernel.org/doc/Documentation/scheduler/sched-design-CFS.txt

網站加速--伺服器編寫篇（上）: http://blog.sina.com.cn/s/blog_466c66400100bi2n.html

Linux技巧：多核下綁定硬體/程序到不同CPU: http://os.51cto.com/art/201007/212964.htm

http://wenku.baidu.com/link?url=OLCxGzfywyWlUp-1Zzs-