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* mgedmin needs some kind of in-memory cache for Plain python objects (strings) that has bounded growth15:53
Theuni1bounded by what measure?15:56
Theuni1s/bounded/bound/15:56
Vqsize?15:57
Theuni1ah15:59
Theuni1i didn't see the "strings" part15:59
Theuni1mgedmin: i think writing a custom dict for that isn't too hard15:59
mgedminyes, but I dislike reinventing wheels15:59
Vqsome kind of global patricia trie for storing "small" strings would be neat15:59
Theuni1mgedmin: ah :)16:00
Theuni1Vq: i think thats what interning is for16:00
mgedminjust something to speed up rendering of restructured text snipplets16:00
mgedminI don't want to eat it all the RAM, since the snipplets can in theory change at runtime16:00
VqTheuni1: does that exist in Python?16:00
Theuni1Vq: i'm not sure how it's implemented16:00
Theuni1by interned strings will always be the same object16:01
mgedminI think a LRU of some kind with an upper bound on the number of objects should be sufficient16:01
VqTheuni1: yeah, i recognise the concept from Java-land16:01
Theuni1by default "short" strings without spaces are interned IIRC16:01
Theuni1but you can also ask the interpreter to intern specific strings16:01
* Vq <- not a Java programmer16:01
* Vq looks embarassed16:01
Theuni1right. don't try to disguise ;)16:01
* Theuni1 puts a mustache on Vq16:02
mgedminshort string literals, I assume16:02
mgedminI doubt Python interns strings created at run time16:02
Theuni1mgedmin: ah, good point. no idea. :)16:02
* Theuni1 wants multi-frame generators16:04
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Vqmaybe there is a function to explicitly intern them at run-time?16:05
Vqlike, ehm, "intern()"16:07
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Theuni1well, that I knew about16:08
Theuni1mgedmin just questioned whether the automatic internalization happens only for literals or for strings that are computed or come from IO, too.16:09
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Vqok, i didn't realise he asked for implicit interning16:11
Theuni1no, i was talking about it16:12
Theuni1and he just pointed out the reality might be slightly different than i thought ;)16:12
Vqit's an interesting problem though16:17
Vqsaving on RAM when dealing with immutable datatypes16:17
mgedminactually, you've just given me an idea16:18
* Vq <- Haskell programmer (not Java dammit)16:18
mgedminatexit hook that prints the size of the cache at the end of the functional test run16:18
Theuni1me? how that?16:20
* Theuni1 wonders whether docs.zope.org only updates once a day16:20
* mgedmin has a buildbot job watch svn for commits to txt files in the right place and rebuild docs16:22
Theuni1yeah, well. poke dataflake. :)16:23
Theuni1hudson could also do the build and upload via sftp16:23
Theuni1that way the target machine doesn't have to run the build at all16:23
Theuni1and doesn't need the infrastructure installed16:24
* Theuni1 keeps plugging hudson16:24
mgedminhudson is friendly16:24
Theuni1yup16:24
mgedminnot too friendly, sadly16:25
Theuni1hu?16:25
mgedmina bit friendlier than buildbot16:25
Theuni1i find it quite a bit friendlier :16:25
Theuni1:)16:25
mgedminyou didn't hear my cursing when hudson refused to do what it claimed it was able to do16:25
Theuni1what was that?16:25
mgedmine.g. check out from file://16:25
Theuni1woah?16:25
mgedminsome bug in some java subversion library that hudson bundles in its war16:25
mgedminchecksum errors of some kind16:25
Theuni1ouch16:26
mgedminfound a bug report in hudson's tracker; nothing is apparently happening anyway16:26
mgedmineven though the fix is to upgrade to the later lib than hudson now bundles16:26
mgedminalso, I set up ssh host keys for the hudson unix user so it could access the repo over svn+ssh16:27
mgedminbut hudson's web UI *insisted* on me either giving it a username and a password pair, *or* uploading the ssh secret key over a web file upload form16:27
* mgedmin hates software that thinks it's smarter than he is, especially when said software is wrong16:28
Theuni1Checking out a fresh workspace because the workspace is not file:///home/ctheune/tmp/asdf16:28
Theuni1Checking out file:///home/ctheune/tmp/asdf16:28
Theuni1At revision 016:28
Theuni1no revision recorded for file:///home/ctheune/tmp/asdf in the previous build16:28
Theuni1[workspace] $ /bin/sh -xe /tmp/hudson8468700479923771996.sh16:28
Theuni1that worked for me ...16:28
mgedminhttp://issues.hudson-ci.org/browse/HUDSON-472716:29
Theuni1why did you say nothing is happening apparently?16:31
Theuni1the last guy said yesterday he fixed it in the plugin but needs some testing16:31
Theuni1well, the day before yesterday16:31
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mgedminbecause "bug has been fixed in the svnkit on 15-Sep-2009 version 1.3.1" and when I was setting up hudson a month ago, it still shipped with svnkit 1.3.016:34
mgedminthat last comment is interesting16:34
mgedminbut it sounds as if the guy is working around the svnkit bug in the plugin (if exception, nuke working tree and re-checkout)16:34
mgedminand I doubt it will help me (IIRC I had that exception during the initial checkout)16:35
mgedminalso, why not just update svnkit?16:35
mgedminam I misunderstanding something?16:35
mgedminincidentally, svn over file:// is tremendously faster than svn over svn+ssh://localhost/16:36
mgedminthe initial ssh negotiation seems to increase latency a lot, even with a reasonably fast CPU16:36
* mgedmin jumps up in the air excitedly16:37
mgedmintwice!16:37
mgedmincaching rendered restructured text snippets shrinks functional test runtime from 12m 56s to 6m 45s16:37
* mgedmin should've profiled sooner16:38
Theuni1cool16:39
mgedminRunSnakeRun is nice, but I don't trust it16:41
mgedminor the cProfile data that it shows16:41
mgedmine.g. visually checkPermission seems to be taking ~50% of the time, but the cum_time column shows just 18%16:41
mgedminpreviously there was a function that took 86 of cumtime, and one of its callers was a function that had 6ms of cumtime16:42
mgedminthe other caller had 0.1s16:42
mgedmins/6ms/6s/16:42
mgedmins/86/86s/16:42
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mgedminincidentally, a trick for profiling in buildoutified projects16:43
mgedminif you have interpreter=py16:43
mgedminuse bin/py -m cProfile -- -o prof.data bin/script args ...16:43
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run|awayJ1m, ?23:50
J1mrun|away, ?23:59
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run|awayin cPickleCache.c, cc_update_object_size_estimation23:59
run|away - setting new_size to int; appears to fix the byte-size gc issue23:59

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