Ross S. W. Walker wrote: > Vladislav Bolkhovitin wrote: > > Vladislav Bolkhovitin, on 04/02/2009 11:38 AM wrote: > > > James Bottomley, on 04/02/2009 12:23 AM wrote: > > >> > > >> SCST explicitly fiddles with the io context to get this to happen. It > > >> has a hack to block to export alloc_io_context: > > >> > > >> http://marc.info/?t=122893564800003 > > > > > > Correct, although I wouldn't call it "fiddle", rather "grouping" ;) > > Call it what you like, > > Vladislav Bolkhovitin wrote: > > Ross S. W. Walker, on 03/30/2009 10:33 PM wrote: > > > > I would be interested in knowing how your code defeats CFQ's extremely > > high latency? Does your code reach into the io scheduler too? If not, > > some code hints would be great. > The above quoting was wrong, for accuracy, it should have read: Vladislav Bolkhovitin wrote: > Ross S. W. Walker, on 03/30/2009 10:33 PM wrote: > > > > I would be interested in knowing how your code defeats CFQ's extremely > > high latency? Does your code reach into the io scheduler too? If not, > > some code hints would be great. > > Hmm, CFQ doesn't have any extra processing latency, especially > "extremely", hence there is nothing to defeat. If it had, how could it > been chosen as the default? Just so there is no misunderstanding who said what here. -Ross ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof. -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
