"Dan Christian" <dchristian@google.com> writes:
> A completely separate idea is to work on caching revision files on
> local disk (so the full text version doesn't have to be regenerated
> repeatedly). The import case below does none of this, but a typical
> commit would reconstruct the previous revision of every file. This
> takes advantage of the fact that revisions never change after they are
> written.
Not to mention read operations like update and merge. Here are
the numbers of times the server opens various files when I svn
merge a revision changing 5439 files. First, the diabolically
interesting ones:
revprops/4/4661 5967
revs/0/2 20445
revs/4/4661 330459
r4661 is the revision I'm merging (svn merge -c 4661).
The complete (almost; some small time passes between starting the
svn merge and attaching strace to the httpd) report:
locks/00a/00a774e1684ba051a1a198f845b1c26e 1
locks/017/017253a4eecda1d50c2f346d41c3118c 1
locks/01b/01b2db1d3353d646984ae515612e10cd 1
locks/030/030bc2067cbd36e635cbe55f74fed6e6 1
locks/033/033a576e6bc61635903909451cdafb90 1
locks/04a/04adc821dc1e80fc28788fd11ceaf9eb 1
locks/0db/0db224a635c4b05fc8c8617cc90511f5 1
locks/15a/15ae43e0f9d1f13d3bf38c6dd2c84005 1
locks/173/1730a10bf7737a4034f3e0f716c02042 1
locks/1ae/1ae65bb90ea43d2b09071ab92934186c 1
locks/206/20602d1e060a28e941bf3bb5b068da55 1
locks/21d/21dcb87847176235f61d1f982f8b9aad 1
locks/22c/22c9504f479a3a94e740b74208ed71ab 1
locks/23e/23e0a5bf42c7ece3f596ab02359ba58f 1
locks/259/25991c561373a8e7cd8d5b75859f4ebd 1
locks/2b4/2b464393dc3fdddc0f4da6bda3fc826c 1
locks/2f6/2f629c8282bf86fc1a7c36f1ce4918da 1
locks/3b0/3b0d9982488b1836168669382516753e 1
locks/3d0/3d0cfd94713fdad86df9c742d6519892 1
locks/40c/40c32ff56e200c830baa47f672976f9d 1
locks/44d/44dc6d79a4cf30eb5440cd630439b4ae 1
locks/48e/48e9f7c12ccb9af525503022182c5f28 1
locks/4bc/4bc3477cb96bc3bbb7f3d10a0f6dd82a 1
locks/4dc/4dcd7f19746e5bccea67402f55b81143 1
locks/55b/55b84601e56f0723268c333304a678f9 1
locks/58f/58f939675e6e42214a49c5f1cb66928a 1
locks/5aa/5aa901026b2d089d2fbc192a7b39090c 1
locks/5b4/5b44035c3e8c20f7671cdc655d0dc4c1 1
locks/5cb/5cb67122e59b2ef5398e33de383af8cf 1
locks/704/7047bfa20bd4e4377515105d1a095209 1
locks/70a/70a67c60d97d3a9d85028e6966b5fa0d 1
locks/72b/72b5b1d823c60af80661aba6e0a2485f 1
locks/75f/75f249be79249576446bb5b815eb8335 1
locks/782/7824b1f181f621dc31a14577dffa0a4a 1
locks/797/797e97a72e167b56dbbda872dad56c00 1
locks/7a6/7a6d729ae3cc2a9eb88c5ce0bc8ccd34 1
locks/82e/82eff4106b8035b0e1e9eba9fabc088d 1
locks/85e/85e5289bcce05f818e36d83464588b0a 1
locks/86f/86f24d050157ae02d50918965cbc1e26 1
locks/872/8720e4a9670e3a09a30bd70db0884e95 1
locks/89e/89e0506efccd50d9f597f31021525f21 1
locks/8e6/8e628d527f542db244128ca4f0f2b747 1
locks/8f9/8f9d3cee72ee5b2a14811b9f92d18cd1 1
locks/917/917795ba30847fefb2a6d3ede02423f9 1
locks/940/9407568181295fbb517e491e9a913c38 1
locks/957/957e07b5ab346c7d35f059925cbe7811 1
locks/959/959dafea2ce99c7b54f01feef77f612e 1
locks/995/995cb749d7dfdf2a4949acf32e72d6e0 1
locks/996/9962f0e41d4c2e4554239ff077a206ea 1
locks/aa8/aa846b742ca04018ff6b9b0816851aa3 1
locks/b01/b01f60776f1611a2a8caeb6c7166d3a0 1
locks/b0e/b0e3e729e6081f7551c90d364f120b38 1
locks/b57/b57f141751c72ad8108a116bb401690c 1
locks/bbd/bbd4c9b811988c54c6a6b3c11529aacb 1
locks/be4/be46012d06047eaeaa96c281614c061a 1
locks/be6/be6e141b103283984d19501786b0f8da 1
locks/bf9/bf9153b8eee3bc1820ff612775f451bc 1
locks/c47/c478d47a9c24edbd95dcf0d28536e9f9 1
locks/c5a/c5a384422cc9f467f6ecfb120bbb9f2b 1
locks/c5b/c5bea8b8524d6ace3184ce96e767cc78 1
locks/c8e/c8e8a7cea6d5eecf7b60c1c50ecee590 1
locks/ca8/ca8a023282dab3376f2b2de02660fb55 1
locks/d2c/d2c6e6ebb1174f2c830c0d653f4f0e56 1
locks/d6a/d6a620c4f87c43e4f2100da220882228 1
locks/d87/d873f77dd2bb5669e04ae4855eb8fb22 1
locks/d8f/d8fd0726c4211cb373d1b11b2e98ef6f 1
locks/dbf/dbfe8482092721e3fc6116bbe1cf8da2 1
locks/ded/dedcb3732ceff6aa44e4fcb1df0e296e 1
locks/e36/e36d56890bb484defbc3610ec4371f3f 1
locks/eac/eacf2c26e3bcf4b7125b3d49448766d3 1
locks/eaf/eaf4007eda627542cf981d228c8484ae 1
locks/ebb/ebb75c58c0f87888a1a8babe5b9f4a8c 1
locks/ee0/ee01aee7a204a678e06d9b85bf329501 1
locks/f24/f243b0a6782e22d5eb06dc86ed3bdb58 1
locks/f4c/f4c0f8c9e2fe1b9871dac1894e34df30 1
locks/f5b/f5bba5dc1d5de32a4e09c297a64acc1f 1
locks/f71/f71a613b6bca5fd826021008f6d9165b 1
locks/fa2/fa2d0d8ea06bb1bb719826c1c45edb6d 1
revs/1/1143 1
revs/3/3474 1
revs/4/4511 1
revs/0/518 2
revs/0/759 2
revs/2/2927 2
revs/0/171 4
revs/0/182 4
revs/0/315 4
revs/0/383 4
revs/0/384 4
revs/0/420 4
revs/0/430 4
revs/0/483 4
revs/0/487 4
revs/0/499 4
revs/0/520 4
revs/0/543 4
revs/0/596 4
revs/0/627 4
revs/0/670 4
revs/0/674 4
revs/0/695 4
revs/0/777 4
revs/0/794 4
revs/0/827 4
revs/0/905 4
revs/1/1071 4
revs/1/1136 4
revs/1/1142 4
revs/1/1171 4
revs/1/1220 4
revs/1/1230 4
revs/1/1288 4
revs/1/1362 4
revs/1/1483 4
revs/1/1503 4
revs/1/1505 4
revs/1/1523 4
revs/1/1648 4
revs/1/1721 4
revs/1/1729 4
revs/1/1731 4
revs/1/1863 4
revs/1/1866 4
revs/1/1936 4
revs/1/1946 4
revs/1/1969 4
revs/2/2066 4
revs/2/2067 4
revs/2/2093 4
revs/2/2105 4
revs/2/2106 4
revs/2/2122 4
revs/2/2124 4
revs/2/2129 4
revs/2/2152 4
revs/2/2154 4
revs/2/2157 4
revs/2/2216 4
revs/2/2221 4
revs/2/2325 4
revs/2/2370 4
revs/2/2381 4
revs/2/2488 4
revs/2/2509 4
revs/2/2523 4
revs/2/2532 4
revs/2/2665 4
revs/2/2677 4
revs/2/2745 4
revs/2/2775 4
revs/2/2785 4
revs/2/2817 4
revs/2/2906 4
revs/2/2921 4
revs/3/3085 4
revs/3/3150 4
revs/3/3177 4
revs/3/3219 4
revs/3/3290 4
revs/3/3301 4
revs/3/3350 4
revs/3/3367 4
revs/3/3420 4
revs/3/3481 4
revs/3/3637 4
revs/3/3670 4
revs/3/3771 4
revs/3/3812 4
revs/3/3822 4
revs/3/3842 4
revs/3/3900 4
revs/3/3908 4
revs/3/3910 4
revs/3/3947 4
revs/3/3966 4
revs/3/3973 4
revs/4/4008 4
revs/4/4017 4
revs/4/4021 4
revs/4/4043 4
revs/4/4070 4
revs/4/4105 4
revs/4/4191 4
revs/4/4195 4
revs/4/4230 4
revs/4/4248 4
revs/4/4250 4
revs/4/4390 4
revs/4/4421 4
revs/4/4427 4
revs/4/4447 4
revs/4/4492 4
revs/4/4508 4
revs/4/4544 4
revs/4/4562 4
revs/4/4563 4
revs/4/4592 4
revs/4/4600 4
revs/4/4629 4
revs/1/1389 5
revs/1/1426 5
revs/1/1753 5
revs/1/1974 5
revs/2/2174 5
revs/3/3147 5
revs/3/3215 5
revs/3/3416 5
revs/3/3788 5
revs/4/4205 5
revs/4/4331 5
revs/4/4399 5
revs/4/4403 5
revs/4/4542 5
revs/4/4547 5
revs/4/4633 5
revs/0/584 6
revs/3/3639 6
revs/0/107 8
revs/0/128 8
revs/0/135 8
revs/0/224 8
revs/0/370 8
revs/0/443 8
revs/0/578 8
revs/0/609 8
revs/0/690 8
revs/0/843 8
revs/0/962 8
revs/0/987 8
revs/1/1595 8
revs/1/1763 8
revs/1/1852 8
revs/1/1870 8
revs/2/2137 8
revs/2/2148 8
revs/2/2149 8
revs/2/2186 8
revs/2/2258 8
revs/2/2594 8
revs/2/2596 8
revs/2/2734 8
revs/2/2772 8
revs/3/3138 8
revs/3/3319 8
revs/3/3329 8
revs/3/3382 8
revs/3/3480 8
revs/3/3524 8
revs/3/3634 8
revs/3/3668 8
revs/3/3755 8
revs/3/3942 8
revs/3/3970 8
revs/4/4011 8
revs/4/4094 8
revs/4/4193 8
revs/4/4231 8
revs/4/4299 8
revs/4/4360 8
revs/4/4371 8
revs/4/4435 8
revs/4/4442 8
revs/4/4466 8
revs/4/4516 8
revs/4/4589 8
revs/4/4594 8
revs/0/277 9
revs/0/710 9
revs/1/1138 9
revs/1/1992 9
revs/2/2159 9
revs/2/2363 9
revs/2/2616 9
revs/3/3247 9
revs/3/3383 9
revs/4/4100 9
revs/0/841 10
revs/2/2320 10
revs/2/2857 10
revs/2/2941 10
revs/3/3928 10
revs/4/4373 10
revs/0/527 12
revs/0/770 12
revs/0/857 12
revs/1/1175 12
revs/2/2101 12
revs/2/2187 12
revs/2/2849 12
revs/3/3141 12
revs/3/3316 12
revs/3/3349 12
revs/3/3689 12
revs/3/3795 12
revs/4/4091 12
revs/4/4228 12
revs/4/4268 12
revs/4/4500 12
revs/4/4536 12
revs/0/439 13
revs/1/1918 13
revs/2/2615 13
revs/4/4391 13
revs/4/4559 13
revs/1/1812 14
revs/4/4225 14
revs/3/3954 15
revs/0/328 16
revs/1/1006 16
revs/1/1853 16
revs/2/2097 16
revs/2/2579 16
revs/2/2640 16
revs/2/2762 16
revs/2/2871 16
revs/3/3234 16
revs/3/3410 16
revs/3/3636 16
revs/3/3766 16
revs/4/4027 16
revs/1/1187 17
revs/1/1331 17
revs/1/1926 17
revs/3/3127 17
revs/3/3376 17
revs/3/3990 17
revs/1/1783 18
revs/3/3682 18
revs/3/3750 18
revs/4/4452 18
revs/3/3501 19
revs/3/3690 19
revs/4/4392 19
revs/0/143 20
revs/0/547 20
revs/1/1860 20
revs/1/1978 20
revs/4/4454 20
revs/0/889 21
revs/2/2247 21
revs/3/3126 21
revs/3/3421 21
revs/4/4194 21
revs/4/4461 21
revs/1/1416 22
revs/3/3937 22
revs/4/4181 22
revs/3/3988 23
revs/4/4007 23
revs/4/4377 23
revs/4/4438 23
revs/4/4463 23
revs/1/1087 24
revs/1/1560 24
revs/3/3743 24
revs/4/4033 24
revs/4/4389 24
revs/4/4439 24
revs/4/4582 27
revs/0/260 28
revs/2/2528 28
revs/2/2650 28
revs/2/2908 28
revs/2/2933 28
revs/4/4412 29
revs/3/3436 30
revs/4/4227 30
revs/4/4537 30
revs/2/2435 31
revs/3/3930 32
revs/4/4211 33
revs/3/3886 35
revs/3/3227 36
revs/4/4560 36
revs/3/3288 38
revs/4/4644 38
revs/3/3905 40
revs/3/3109 41
revs/3/3496 41
revs/3/3737 42
revs/4/4479 44
revs/4/4615 44
revs/3/3769 45
revs/1/1568 46
revs/2/2572 46
revs/3/3424 47
revs/4/4441 51
revs/4/4455 53
revs/2/2753 54
revs/4/4066 56
revs/3/3710 59
revs/3/3977 60
revs/4/4062 60
revs/4/4555 61
revs/4/4650 64
revs/4/4630 66
revs/4/4402 69
revs/4/4406 81
revs/4/4624 81
revs/0/65 84
revs/4/4612 89
revs/4/4646 89
revs/4/4459 90
revs/4/4645 106
revs/3/3708 124
revs/2/2773 131
revs/4/4506 189
revs/2/2641 266
revs/0/556 311
revs/0/441 477
revs/4/4649 590
revs/1/1915 667
revs/2/2554 825
revs/3/3053 1014
revs/4/4180 3870
revprops/4/4661 5967
revs/0/2 20445
revs/4/4661 330459
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Received on Tue Aug 14 00:36:35 2007