From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Luis R. Rodriguez" Subject: Re: [PATCH v1 5/5] driver-core: add driver asynchronous probe support Date: Fri, 3 Oct 2014 23:12:11 +0200 Message-ID: <20141003211211.GX14081@wotan.suse.de> References: <1411768637-6809-1-git-send-email-mcgrof@do-not-panic.com> <1411768637-6809-6-git-send-email-mcgrof@do-not-panic.com> <20141003201126.GW14081@wotan.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20141003201126.GW14081@wotan.suse.de> Sender: netdev-owner@vger.kernel.org To: "Luis R. Rodriguez" Cc: gregkh@linuxfoundation.org, dmitry.torokhov@gmail.com, tiwai@suse.de, tj@kernel.org, arjan@linux.intel.com, teg@jklm.no, rmilasan@suse.com, werner@suse.com, oleg@redhat.com, hare@suse.com, bpoirier@suse.de, santosh@chelsio.com, pmladek@suse.cz, dbueso@suse.com, linux-kernel@vger.kernel.org, Tetsuo Handa , Joseph Salisbury , Kay Sievers , One Thousand Gnomes , Tim Gardner , Pierre Fersing , Andrew Morton , Nagalakshmi Nandigama , Praveen Krishnamoorthy , Sreekanth Reddy , Abhijit Mahajan , Casey Leedom , Hariprasad S List-Id: linux-scsi@vger.kernel.org On Fri, Oct 03, 2014 at 10:11:26PM +0200, Luis R. Rodriguez wrote: > On Fri, Sep 26, 2014 at 02:57:17PM -0700, Luis R. Rodriguez wrote: > > + queue_work(system_unbound_wq, &priv->attach_work->work); > > Tejun, > > based on my testing so far using system_highpri_wq instead of > system_unbound_wq yields close to par / better boot times > than synchronous probe support for all modules. How set are > you on using system_unbound_wq? About to punt out a new > series which also addresses built-in. Nevermind, folks can change this later with better empirical testing than I can provide and right now the differences I see are not too conclusive and I suspect we'll see more of a difference once the right built-in drivers are selected to probe asynchrounously. Luis