| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Wed, 16 Jun 2010 11:41:04 -0700 From: Daniel Walker <dwalker@...eaurora.org> To: Stefan Richter <stefanr@...6.in-berlin.de> Cc: Tejun Heo <tj@...nel.org>, mingo@...e.hu, awalls@...ix.net, linux-kernel@...r.kernel.org, jeff@...zik.org, akpm@...ux-foundation.org, rusty@...tcorp.com.au, cl@...ux-foundation.org, dhowells@...hat.com, arjan@...ux.intel.com, johannes@...solutions.net, oleg@...hat.com, axboe@...nel.dk Subject: Re: Overview of concurrency managed workqueue On Wed, 2010-06-16 at 20:31 +0200, Stefan Richter wrote: > Daniel Walker wrote: > [tweak scheduling priority of a worker thread] > > Let say I have a high priority > > thread in userspace , and I discover through analysis that my thread is > > being forced to wait on a workqueue thread (priority inversion) , so > > then I just increase the workqueue thread priority to overcome the > > inversion. That's totally valid, and you don't even need to know exactly > > what the thread is doing.. > > I suspect the _actual_ problem to solve here is not that of proper > scheduling priorities but that of having to meet deadlines. I think the workqueue would need to be adjust somehow even in terms of deadlines. Like you'll miss your deadline unless the workqueue runs. Daniel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists