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These logs are provided as an experiment in indexing discussions using IRCHub.py, Irc2RDF.hs, and SIOC.
| 00:44:33 | <dsfox> | I guess I'll stick to debianizing everything I use |
| 02:56:20 | <mightybyte> | Yeah, linode. |
| 14:11:08 | <kowey> | is this something that affects all happstack users? http://hackage.haskell.org/trac/ghc/ticket/698 |
| 14:20:24 | <dcoutts> | kowey: you mean, do people find it a serious problem in their specific applications? |
| 14:20:57 | <kowey> | right |
| 14:21:18 | <dcoutts> | obviously it particularly affects apps that inflate their mem use for individual requests |
| 14:21:30 | <dcoutts> | and not all web apps have that characteristic, indeed most do not |
| 14:22:22 | <dcoutts> | kowey: so eg the hackage-server doesn't have that problem |
| 14:23:03 | <dcoutts> | because while the state uses quite a bit of memory, individual requests do not need that much temporary storage |
| 14:24:35 | <kowey> | whereas gitit is affected when (guessing wildly) it has to parse a huge XML file from darcs changes, and for some reason wants to grab lots of memory to do it? |
| 14:24:40 | <kowey> | (this is idle speculation, of course) |
| 14:33:49 | <kowey> | so what I'm scratching my head over (without really being equipped for it) is what's causing these gitit OOMs on darcs.net |
| 14:34:55 | <kowey> | gwern mentioned this bug as one of the things he noticed... but where I can see how that would prevent our memory usage from ever dropping |
| 14:36:08 | <kowey> | if our individual requests don't get progressively larger, and gitit/filestore itself doesn't have some sort of leak, then no real problem, right? |
| 15:10:11 | <dcoutts> | kowey: right, this issue that ghc does not release memory does not affect OOM, because that's about peak usage |
| 15:11:54 | <dcoutts> | so if you're getting OOM you need to look for a different cause, ie why serving one request takes so much memory |
| 15:13:05 | <kowey> | thanks! (and sorry for the confused rambling) |
| 15:13:21 | <kowey> | I also just noticed I haven't been reading that bug carefully... just saw this from gwern: |
| 15:13:29 | <kowey> | "There are a few pages like 'Recent changes' which get the entire revision history; each time this happens, the memory usage goes up a bit..." |
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