* BTree lock contention @ 2012-12-18 4:24 Atri Sharma 2012-12-18 14:04 ` Josef Bacik 0 siblings, 1 reply; 9+ messages in thread From: Atri Sharma @ 2012-12-18 4:24 UTC (permalink / raw) To: linux-btrfs Hi All, I was looking through the project ideas page for picking up a project do start working with BTRFS. I am really interested in Btree lock contention project, but it seems to be marked that it has already been done in v3.1 Is the project still open? Can I work on it? Regards, Atri -- Regards, Atri l'apprenant ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: BTree lock contention 2012-12-18 4:24 BTree lock contention Atri Sharma @ 2012-12-18 14:04 ` Josef Bacik 2012-12-18 14:13 ` Atri Sharma 0 siblings, 1 reply; 9+ messages in thread From: Josef Bacik @ 2012-12-18 14:04 UTC (permalink / raw) To: Atri Sharma; +Cc: linux-btrfs@vger.kernel.org On Mon, Dec 17, 2012 at 09:24:23PM -0700, Atri Sharma wrote: > Hi All, > > I was looking through the project ideas page for picking up a project > do start working with BTRFS. I am really interested in Btree lock > contention project, but it seems to be marked that it has already been > done in v3.1 > > Is the project still open? Can I work on it? > Go for it, we still have plenty of lock contention, it's just in 3.1 we switched to a read/write lock which helped a bunch. Still if you have all writers you are going to hit quite a bit of lock contention, especially on the root nodes. If you have ideas go for it. Thanks, Josef ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: BTree lock contention 2012-12-18 14:04 ` Josef Bacik @ 2012-12-18 14:13 ` Atri Sharma 2012-12-18 14:27 ` Atri Sharma 0 siblings, 1 reply; 9+ messages in thread From: Atri Sharma @ 2012-12-18 14:13 UTC (permalink / raw) To: Josef Bacik; +Cc: linux-btrfs@vger.kernel.org Thanks. I shall mark it as in progress then. For writer's contention, I was thinking of decreasing the lock granularity. I have not really thought about it deeply yet, but my initial plans are to identify areas where we can distribute the locks, and maybe use techniques such as combining trees. Thanks a ton, Atri On Tue, Dec 18, 2012 at 7:34 PM, Josef Bacik <jbacik@fusionio.com> wrote: > On Mon, Dec 17, 2012 at 09:24:23PM -0700, Atri Sharma wrote: >> Hi All, >> >> I was looking through the project ideas page for picking up a project >> do start working with BTRFS. I am really interested in Btree lock >> contention project, but it seems to be marked that it has already been >> done in v3.1 >> >> Is the project still open? Can I work on it? >> > > Go for it, we still have plenty of lock contention, it's just in 3.1 we switched > to a read/write lock which helped a bunch. Still if you have all writers you > are going to hit quite a bit of lock contention, especially on the root nodes. > If you have ideas go for it. Thanks, > > Josef -- Regards, Atri l'apprenant ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: BTree lock contention 2012-12-18 14:13 ` Atri Sharma @ 2012-12-18 14:27 ` Atri Sharma 2012-12-19 13:17 ` David Sterba 0 siblings, 1 reply; 9+ messages in thread From: Atri Sharma @ 2012-12-18 14:27 UTC (permalink / raw) To: Josef Bacik; +Cc: linux-btrfs@vger.kernel.org On Tue, Dec 18, 2012 at 7:43 PM, Atri Sharma <atri.jiit@gmail.com> wrote: > Thanks. > > I shall mark it as in progress then. > > For writer's contention, I was thinking of decreasing the lock > granularity. I have not really thought about it deeply yet, but my > initial plans are to identify areas where we can distribute the locks, > and maybe use techniques such as combining trees. > > Thanks a ton, > > Atri > > On Tue, Dec 18, 2012 at 7:34 PM, Josef Bacik <jbacik@fusionio.com> wrote: >> On Mon, Dec 17, 2012 at 09:24:23PM -0700, Atri Sharma wrote: >>> Hi All, >>> >>> I was looking through the project ideas page for picking up a project >>> do start working with BTRFS. I am really interested in Btree lock >>> contention project, but it seems to be marked that it has already been >>> done in v3.1 >>> >>> Is the project still open? Can I work on it? >>> >> >> Go for it, we still have plenty of lock contention, it's just in 3.1 we switched >> to a read/write lock which helped a bunch. Still if you have all writers you >> are going to hit quite a bit of lock contention, especially on the root nodes. >> If you have ideas go for it. Thanks, >> >> Josef > > > > -- > Regards, > > Atri > l'apprenant I am pretty weak with Mediawiki. Is there any way somebody could please place my name 'Atri Sharma' for the Btree locking contention in the wiki? Thanks, Atri -- Regards, Atri l'apprenant ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: BTree lock contention 2012-12-18 14:27 ` Atri Sharma @ 2012-12-19 13:17 ` David Sterba 2012-12-19 15:00 ` Atri Sharma 0 siblings, 1 reply; 9+ messages in thread From: David Sterba @ 2012-12-19 13:17 UTC (permalink / raw) To: Atri Sharma; +Cc: Josef Bacik, linux-btrfs@vger.kernel.org On Tue, Dec 18, 2012 at 07:57:23PM +0530, Atri Sharma wrote: > I am pretty weak with Mediawiki. Is there any way somebody could > please place my name 'Atri Sharma' for the Btree locking contention in > the wiki? Done. We're using templates for the project descriptions, and clicking 'edit' leads to editing the template itself, so one has to edit the containing section (or the whole page) instead. david ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: BTree lock contention 2012-12-19 13:17 ` David Sterba @ 2012-12-19 15:00 ` Atri Sharma 2012-12-19 15:04 ` Atri Sharma 0 siblings, 1 reply; 9+ messages in thread From: Atri Sharma @ 2012-12-19 15:00 UTC (permalink / raw) To: dsterba; +Cc: Josef Bacik, linux-btrfs@vger.kernel.org Thanks a ton David. Should I be sending a plan of my approach before starting work? Atri On Wed, Dec 19, 2012 at 6:47 PM, David Sterba <dsterba@suse.cz> wrote: > On Tue, Dec 18, 2012 at 07:57:23PM +0530, Atri Sharma wrote: >> I am pretty weak with Mediawiki. Is there any way somebody could >> please place my name 'Atri Sharma' for the Btree locking contention in >> the wiki? > > Done. We're using templates for the project descriptions, and clicking > 'edit' leads to editing the template itself, so one has to edit the > containing section (or the whole page) instead. > > > david -- Regards, Atri l'apprenant ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: BTree lock contention 2012-12-19 15:00 ` Atri Sharma @ 2012-12-19 15:04 ` Atri Sharma 2012-12-19 15:09 ` David Sterba 0 siblings, 1 reply; 9+ messages in thread From: Atri Sharma @ 2012-12-19 15:04 UTC (permalink / raw) To: dsterba; +Cc: Josef Bacik, linux-btrfs@vger.kernel.org Hi David, Sorry for bothering again, but I cant see Btree Lock contention marked as in progress or my name anywhere on https://btrfs.wiki.kernel.org/index.php/Project_ideas Could you please check? Thanks, Atri On Wed, Dec 19, 2012 at 8:30 PM, Atri Sharma <atri.jiit@gmail.com> wrote: > Thanks a ton David. > > Should I be sending a plan of my approach before starting work? > > Atri > > On Wed, Dec 19, 2012 at 6:47 PM, David Sterba <dsterba@suse.cz> wrote: >> On Tue, Dec 18, 2012 at 07:57:23PM +0530, Atri Sharma wrote: >>> I am pretty weak with Mediawiki. Is there any way somebody could >>> please place my name 'Atri Sharma' for the Btree locking contention in >>> the wiki? >> >> Done. We're using templates for the project descriptions, and clicking >> 'edit' leads to editing the template itself, so one has to edit the >> containing section (or the whole page) instead. >> >> >> david > > > > -- > Regards, > > Atri > l'apprenant -- Regards, Atri l'apprenant ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: BTree lock contention 2012-12-19 15:04 ` Atri Sharma @ 2012-12-19 15:09 ` David Sterba 2012-12-19 15:17 ` Atri Sharma 0 siblings, 1 reply; 9+ messages in thread From: David Sterba @ 2012-12-19 15:09 UTC (permalink / raw) To: Atri Sharma; +Cc: dsterba, Josef Bacik, linux-btrfs@vger.kernel.org On Wed, Dec 19, 2012 at 08:34:08PM +0530, Atri Sharma wrote: > Sorry for bothering again, but I cant see Btree Lock contention marked > as in progress or my name anywhere on > https://btrfs.wiki.kernel.org/index.php/Project_ideas > > Could you please check? I don't know what happened to the edit, but I'm sure I moved the 'lock contention' under 'claimed projects' with your name added. Now it's there. david ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: BTree lock contention 2012-12-19 15:09 ` David Sterba @ 2012-12-19 15:17 ` Atri Sharma 0 siblings, 0 replies; 9+ messages in thread From: Atri Sharma @ 2012-12-19 15:17 UTC (permalink / raw) To: dsterba; +Cc: Josef Bacik, linux-btrfs@vger.kernel.org Thanks a ton David. Now it is there. Regards, Atri On Wed, Dec 19, 2012 at 8:39 PM, David Sterba <dsterba@suse.cz> wrote: > On Wed, Dec 19, 2012 at 08:34:08PM +0530, Atri Sharma wrote: >> Sorry for bothering again, but I cant see Btree Lock contention marked >> as in progress or my name anywhere on >> https://btrfs.wiki.kernel.org/index.php/Project_ideas >> >> Could you please check? > > I don't know what happened to the edit, but I'm sure I moved the 'lock > contention' under 'claimed projects' with your name added. Now it's > there. > > david -- Regards, Atri l'apprenant ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2012-12-19 15:17 UTC | newest] Thread overview: 9+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2012-12-18 4:24 BTree lock contention Atri Sharma 2012-12-18 14:04 ` Josef Bacik 2012-12-18 14:13 ` Atri Sharma 2012-12-18 14:27 ` Atri Sharma 2012-12-19 13:17 ` David Sterba 2012-12-19 15:00 ` Atri Sharma 2012-12-19 15:04 ` Atri Sharma 2012-12-19 15:09 ` David Sterba 2012-12-19 15:17 ` Atri Sharma
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