Comments on: Startup, again

By: bert hubert

bert hubert — Wed, 29 Jul 2009 21:18:10 +0000

You might want to look at ‘cinfo’ – http://ds9a.nl/cinfo
It has bitrotted slightly, but it will tell you which pages of a file are in the page cache (on Linux, and perhaps Solaris too).

By: vladimir

vladimir — Tue, 28 Jul 2009 17:44:36 +0000

Taras, yeah, as I mentioned I have a full trace; it’s not enough.

Ed, yep, I compared that with the trace that I have. Mostly the same files. There’s something else going on, and I’m not sure what, will keep looking.

By: Taras

Taras — Tue, 28 Jul 2009 15:55:18 +0000

You can get a complete list of what’s in cache by stracing the program first

By: Jo Hermans

Jo Hermans — Tue, 28 Jul 2009 15:50:39 +0000

I vaguely remember that several sqlite files still used the default 1K pagesize, instead of the normal 4K. Not places.sqlite, but cookies.sqlite etc … I’ll try to look tonight if I can make a list of them. I saw the 1K reads in a Process Monitor logfile, but I don’t know if they would tax the startup a lot.

It was mentioned somewhere in a bug that we should force them all to use 4K. Note that if we would change the pagesize, then people with old profiles would still use the incorrect pagesizes. A workaround (aside form recreating the databases) would be to create a new profile.

By: Edward Lee

Edward Lee — Tue, 28 Jul 2009 08:48:24 +0000

When I run “lsof -c firefox-bin” on a new profile, I see..

app dir: 5 chrome jars, 17 dylibs
/Library: 1 caches, 19 fonts, 2 plugins (flash, quicktime)
/System/Library: 1 caches, 4 encoding dylibs, 4 fonts, ~15 framework related (carbon, core audio, core uiquicktime)
profile dir: ~10 sqlite/db
user/Library: 4 caches, 1 sqlite, 2 fonts

I suppose it might be more useful if it was a lsof -c firefox-bin at various points during startup, but that might be useful in figuring out what else might be loaded.