> >On Sat, Jul 23, 2022 at 12:49:49AM +0800, Jiebin Sun wrote: >> From: jiebin sun <jiebin.sun@xxxxxxxxx> >> >> Remove the redundant updating of stats_flush_threshold. If the global >> var stats_flush_threshold has exceeded the trigger value for >> __mem_cgroup_flush_stats, further increment is unnecessary. >> >> Apply the patch and test the pts/hackbench-1.0.0 Count:4 (160 threads). >> >> Score gain: 1.95x >> Reduce CPU cycles in __mod_memcg_lruvec_state (44.88% -> 0.12%) >> >> CPU: ICX 8380 x 2 sockets >> Core number: 40 x 2 physical cores >> Benchmark: pts/hackbench-1.0.0 Count:4 (160 threads) >> >> Signed-off-by: Jiebin Sun <jiebin.sun@xxxxxxxxx> > >Reviewed-by: Roman Gushchin <roman.gushchin@xxxxxxxxx> > >Good optimization, thanks! Looks good. Nice performance improvement. Reviewed-by: Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
