On Mon, 01 Apr 2013 00:44:12 +0000 ne...@apache.org wrote: > 1.7.0@1181106 vs. trunk@1462907 > Started at Mon Apr 1 00:26:11 UTC 2013 > > *DISCLAIMER* - This tests only file://-URL access on a GNU/Linux VM. > This is intended to measure changes in performance of the local > working copy layer, *only*. These results are *not* generally true > for everyone. > > Charts of this data are available at > http://svn-qavm.apache.org/charts/
It's time for another chart reading summary, as there has been a dramatic change that is shown to be consistent for the past three benchmark runs. Whoever is reading this, keep in mind that all of these findings only apply to a local non-network connection to the repository, using file:// URLs only, and even then: Your Mileage May Vary. Thank you. Somewhere between r1454789 and r1457253 on trunk, that's three to four weeks ago, 'commit', 'copy' and 'merge' got dramatically faster: as much as 80%, and more! Amazing. Commit and copy got faster across the board, merge only in the 5x5 working copy scenario (5x5 means: 5 dir levels, with 5 files and 5 more subdirs per dir -- an evenly spread, "realistic" working copy). The most noticeable speed increase is seen for a commit in the 5x5 working copy: of 1.7.0's average 25.5 seconds of runtime, trunk has lost around 21 seconds! ... That's twenty-one full seconds! A merge in a 5x5 WC with trunk has now lost about seven of 1.7.0's ten seconds of runtime. 70%! Four weeks ago, trunk's copy in a 5x5 WC has actually been slightly slower than 1.7.0. Now it's 90% faster than 1.7.0, dropping from a quarter of a second in 1.7.0 to near instantaneous completion on trunk. The benchmark's grand totals now suggest that trunk's libsvn_wc is -- drumrolls -- on average 62% faster than 1.7.0! Just four weeks ago that was "a mere" 25%. Above speed gains have been consistent for the past three benchmark runs, i.e. the past three weeks. BTW, if you noticed some red bars for the same three test runs with a speed *loss* of up to 90%, relax: all of those account for far less than 0.1 seconds; just take a look on the right-hand-side charts. I hope you enjoyed this summary from your friendly neighborhood chart interpreter. Good work lads!!1!1 (It was definitely not me, that's for sure.) Meep meep! -- Roadrunner ~Neels
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