| 1 |
Notes: |
| 2 |
- Total conversion time on the order of 20 hours of wallclock. |
| 3 |
- cvs2svn seems to be entirely single-threaded :-(. |
| 4 |
- Dropped: chriswhite's vendorbranch |
| 5 |
- Dropped: branches: 'RELEASE-1_4', 'MAIN' |
| 6 |
- Dropped: tags: 'GENTOO_1_4_SNAP_2003010800', 'gentoo_1_0_rc5', 'gentoo_1_0_rc1' |
| 7 |
- DID run with Linus's memory improvements. Helped :-). |
| 8 |
|
| 9 |
TODO: |
| 10 |
- Could somebody with Python-foo please look hard at cvs2svn with an eye to |
| 11 |
making it multi-threaded? |
| 12 |
- Focus on pass1 and pass9. |
| 13 |
- pass8 maybe as well, but I think it will be harder by design. |
| 14 |
- We need incremental conversion stuff badly. |
| 15 |
- I had to use the RCSRevisionReader, as InternalRevisionReader seemed to be |
| 16 |
broken. Would make pass1 faster as well. |
| 17 |
- Should probably ignore the '.frozen' files. |
| 18 |
- Review RCS state of ALL ,v files. There are a few non-dead files in Attic. |
| 19 |
- Maybe trim out the Manifest/digest contents during the conversion, leaving |
| 20 |
only DIST lines? |
| 21 |
Con: _WOULD_ break old GPG signatures. |
| 22 |
Pro: probably help size a lot. |
| 23 |
|
| 24 |
Raw number fun: |
| 25 |
|
| 26 |
cvs2svn Statistics: |
| 27 |
------------------ |
| 28 |
Total CVS Files: 353491 |
| 29 |
Total CVS Revisions: 2135193 |
| 30 |
Total CVS Branches: 0 |
| 31 |
Total CVS Tags: 0 |
| 32 |
Total Unique Tags: 0 |
| 33 |
Total Unique Branches: 0 |
| 34 |
CVS Repos Size in KB: 1484628 |
| 35 |
Total SVN Commits: 631683 |
| 36 |
First Revision Date: Fri Jul 28 00:35:42 2000 |
| 37 |
Last Revision Date: Sun Apr 12 21:54:28 2009 |
| 38 |
------------------ |
| 39 |
Timings (seconds): |
| 40 |
------------------ |
| 41 |
36204 pass1 CollectRevsPass |
| 42 |
69 pass2 CleanMetadataPass |
| 43 |
0 pass3 CollateSymbolsPass |
| 44 |
334 pass4 FilterSymbolsPass |
| 45 |
5 pass5 SortRevisionSummaryPass |
| 46 |
0 pass6 SortSymbolSummaryPass |
| 47 |
443 pass7 InitializeChangesetsPass |
| 48 |
4778 pass8 BreakRevisionChangesetCyclesPass |
| 49 |
22499 pass9 RevisionTopologicalSortPass |
| 50 |
95 pass10 BreakSymbolChangesetCyclesPass |
| 51 |
382 pass11 BreakAllChangesetCyclesPass |
| 52 |
338 pass12 TopologicalSortPass |
| 53 |
801 pass13 CreateRevsPass |
| 54 |
0 pass14 SortSymbolsPass |
| 55 |
0 pass15 IndexSymbolsPass |
| 56 |
704 pass16 OutputPass |
| 57 |
66652 total |
| 58 |
|
| 59 |
real 1110m55.837s |
| 60 |
user 591m49.479s |
| 61 |
sys 535m40.497s |
| 62 |
|
| 63 |
git-fast-import statistics: |
| 64 |
--------------------------------------------------------------------- |
| 65 |
Alloc'd objects: 5115000 |
| 66 |
Total objects: 5114877 ( 128330 duplicates ) |
| 67 |
blobs : 1915756 ( 107039 duplicates 1635294 deltas) |
| 68 |
trees : 2567439 ( 21291 duplicates 2311113 deltas) |
| 69 |
commits: 631682 ( 0 duplicates 0 deltas) |
| 70 |
tags : 0 ( 0 duplicates 0 deltas) |
| 71 |
Total branches: 1 ( 1 loads ) |
| 72 |
marks: 1073741824 ( 2654477 unique ) |
| 73 |
atoms: 287640 |
| 74 |
Memory total: 244856 KiB |
| 75 |
pools: 45051 KiB |
| 76 |
objects: 199804 KiB |
| 77 |
--------------------------------------------------------------------- |
| 78 |
pack_report: getpagesize() = 4096 |
| 79 |
pack_report: core.packedGitWindowSize = 1073741824 |
| 80 |
pack_report: core.packedGitLimit = 8589934592 |
| 81 |
pack_report: pack_used_ctr = 1 |
| 82 |
pack_report: pack_mmap_calls = 1 |
| 83 |
pack_report: pack_open_windows = 1 / 1 |
| 84 |
pack_report: pack_mapped = 304718192 / 304718192 |
| 85 |
--------------------------------------------------------------------- |
| 86 |
real 16m3.034s |
| 87 |
user 14m18.158s |
| 88 |
sys 1m42.582s |
| 89 |
|
| 90 |
$ time git repack -adf --window=250 --depth=250 2>&1 |
| 91 |
real 19m59.339s |
| 92 |
user 96m48.011s |
| 93 |
sys 0m36.914s |
| 94 |
|
| 95 |
Pack output size: |
| 96 |
883MiB. |
| 97 |
|
| 98 |
-- |
| 99 |
Robin Hugh Johnson |
| 100 |
Gentoo Linux Developer & Infra Guy |
| 101 |
E-Mail : robbat2@g.o |
| 102 |
GnuPG FP : 11AC BA4F 4778 E3F6 E4ED F38E B27B 944E 3488 4E85 |
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