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Date: Thu, 18 Dec 2008 22:19:06 -0600 From: "Serge E. Hallyn" <serue@...ibm.com> To: David Howells <dhowells@...hat.com> Cc: trond.myklebust@....uio.no, viro@...IV.linux.org.uk, nfsv4@...ux-nfs.org, linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org Subject: Re: [PATCH 01/45] Create a dynamically sized pool of threads for doing very slow work items [ver #41] Quoting David Howells (dhowells@...hat.com): > Create a dynamically sized pool of threads for doing very slow work items, such > as invoking mkdir() or rmdir() - things that may take a long time and may > sleep, holding mutexes/semaphores and hogging a thread, and are thus unsuitable > for workqueues. > > The number of threads is always at least a settable minimum, but more are > started when there's more work to do, up to a limit. Because of the nature of > the load, it's not suitable for a 1-thread-per-CPU type pool. A system with > one CPU may well want several threads. > > This is used by FS-Cache to do slow caching operations in the background, such > as looking up, creating or deleting cache objects. > > Signed-off-by: David Howells <dhowells@...hat.com> Acked-by: Serge Hallyn <serue@...ibm.com> -- 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/
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