Subject: Re: [PATCH/RFC 0/6] reuse deltas found by bitmaps

From: Siddharth Agarwal <[email-masked]>
Date: Wed, 26 Mar 2014 15:40:47 -0700

On 03/26/2014 12:22 AM, Jeff King wrote:
> [tl;dr the patch is the same as before, but there is a script to measure
>         its effects; please try it out on your repos]

Here are results from one of our repos:

Test                         origin HEAD
-------------------------------------------------------------------------
5311.3: server   (1 days)    1.77(2.49+0.15)     0.76(0.65+0.12) -57.1%
5311.4: size     (1 days)               7.8M                3.1M -60.2%
5311.5: client   (1 days)    0.56(0.48+0.03)     1.18(0.97+0.05) +110.7%
5311.7: server   (2 days)    2.79(3.68+0.25)     0.77(0.65+0.14) -72.4%
5311.8: size     (2 days)              24.2M                6.8M -71.8%
5311.9: client   (2 days)    1.14(0.95+0.10)     2.72(2.33+0.13) +138.6%
5311.11: server   (4 days)   3.70(4.76+0.28)     0.84(0.72+0.14) -77.3%
5311.12: size     (4 days)             51.2M               18.9M -63.0%
5311.13: client   (4 days)   2.29(2.02+0.29)     4.58(3.91+0.30) +100.0%
5311.15: server   (8 days)   5.16(7.48+0.38)     1.20(1.18+0.21) -76.7%
5311.16: size     (8 days)             78.3M               42.6M -45.5%
5311.17: client   (8 days)   3.73(3.67+0.40)     6.59(5.95+0.51) +76.7%
5311.19: server  (16 days)   6.48(10.27+0.52)    1.60(1.85+0.27) -75.3%
5311.20: size    (16 days)             97.5M               64.0M -34.4%
5311.21: client  (16 days)   5.31(5.76+0.57)     8.99(8.61+0.68) +69.3%
5311.23: server  (32 days)   8.56(14.00+0.67)    2.31(2.91+0.37) -73.0%
5311.24: size    (32 days)            124.7M               92.0M -26.2%
5311.25: client  (32 days)   7.69(9.20+0.76)     12.80(13.07+0.91) +66.4%
5311.27: server  (64 days)   37.47(45.48+1.55)   29.75(29.58+0.96) -20.6%
5311.28: size    (64 days)            245.5M              207.1M -15.6%
5311.29: client  (64 days)   15.11(18.26+1.58)   25.02(25.90+2.03) +65.6%
5311.31: server (128 days)   43.85(57.02+2.57)   29.88(29.54+1.35) -31.9%
5311.32: size   (128 days)            507.3M              461.6M -9.0%
5311.33: client (128 days)   27.13(31.54+3.32)   37.76(39.49+3.16) +39.2%

I'm currently running tests on a much larger repo than that. The full 
perf run will take several hours on that, so the soonest I can likely 
publish results for that is tomorrow.