Messages in this thread | | | Date | Sat, 28 Mar 2009 12:57:19 +0100 | From | "Andreas T.Auer" <> | Subject | Re: Linux 2.6.29 |
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On 28.03.2009 03:38 Linus Torvalds wrote: > On Fri, 27 Mar 2009, Mark Lord wrote: > >> Okay, I'll bite. Exactly which version of FF has that variable? >> Cuz it ain't in the FF 3.0.8 that I'm running here. >> > > I'd suspect that I mistyped it, but I just cut-and-pasted it from my email > to make sure. Maybe you did. What happens if you just write "sync" in the > Filter: box? Nothing matches? > > No, not with my iceweasel 3.0.7 (Debian/testing).
I couldn't find anything in the Debian patch to the source code, but the source code contains toolkit/components/contentprefs/src/nsContentPrefService.js 733-746:
// Turn off disk synchronization checking to reduce disk churn and speed up // operations when prefs are changed rapidly (such as when a user repeatedly // changes the value of the browser zoom setting for a site). // // Note: this could cause database corruption if the OS crashes or machine // loses power before the data gets written to disk, but this is considered // a reasonable risk for the not-so-critical data stored in this database. // // If you really don't want to take this risk, however, just set the // toolkit.storage.synchronous pref to 1 (NORMAL synchronization) or 2 // (FULL synchronization), in which case mozStorageConnection::Initialize // will use that value, and we won't override it here. if (!this._prefSvc.prefHasUserValue("toolkit.storage.synchronous")) dbConnection.executeSimpleSQL("PRAGMA synchronous = OFF");
Probably they preferred the default value "off" so much that they even dropped the entry in standard configuration. > Do you see firefox pausing a lot under disk load? I see iceweasel pausing/blocking a lot when loading stalling webpages, but that's a different topic.
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