On Mon, Sep 3, 2018 at 9:21 PM Duy Nguyen <pclouds@xxxxxxxxx> wrote: > > I used p0002-read-cache.sh to generate some performance data on the > > cumulative impact: > > > > 100,000 entries > > > > Test HEAD~3 HEAD~2 > > --------------------------------------------------------------------------- > > read_cache/discard_cache 1000 times 14.08(0.01+0.10) 9.72(0.03+0.06) -31.0% > > This is misleading (if I read it correctly). 1/3 already drops > execution time down to 9.81, so this patch alone only has about 6% > saving. I may have miscalculated that. 1/3 says -30% saving, here it's -31%, so I guess it's 1% extra saving (or ~3% on 1m entries)? That's definitely not worth doing. -- Duy
