From: Ingo Molnar Date: Thu, 2 Aug 2007 15:41:40 +0000 (+0200) Subject: [PATCH] sched: reduce task_struct size X-Git-Tag: v2.6.23-rc2~13^2 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=94c18227d1e3f02de5b345bd3cd5c960214dc9c8;p=linux-2.6-omap-h63xx.git [PATCH] sched: reduce task_struct size more task_struct size reduction, by moving the debugging/instrumentation fields to under CONFIG_SCHEDSTATS: (i386, nodebug): size ---- pre-CFS 1328 CFS 1472 CFS+patch 1376 Signed-off-by: Ingo Molnar --- diff --git a/include/linux/sched.h b/include/linux/sched.h index c9e0c2a6a95..17249fae501 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -904,23 +904,28 @@ struct sched_entity { struct rb_node run_node; unsigned int on_rq; + u64 exec_start; + u64 sum_exec_runtime; u64 wait_start_fair; + u64 sleep_start_fair; + +#ifdef CONFIG_SCHEDSTATS u64 wait_start; - u64 exec_start; + u64 wait_max; + s64 sum_wait_runtime; + u64 sleep_start; - u64 sleep_start_fair; - u64 block_start; u64 sleep_max; + s64 sum_sleep_runtime; + + u64 block_start; u64 block_max; u64 exec_max; - u64 wait_max; - u64 last_ran; - u64 sum_exec_runtime; - s64 sum_wait_runtime; - s64 sum_sleep_runtime; unsigned long wait_runtime_overruns; unsigned long wait_runtime_underruns; +#endif + #ifdef CONFIG_FAIR_GROUP_SCHED struct sched_entity *parent; /* rq on which this entity is (to be) queued: */