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Re: [PATCH 01/32] arm/omap: use system_wq in mailbox

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From: Tejun Heo
Subject: Re: [PATCH 01/32] arm/omap: use system_wq in mailbox
Date: Monday, January 3, 2011 - 10:24 pm

Hello,

On Mon, Jan 03, 2011 at 03:35:45PM -0600, Kanigeri, Hari wrote:

Using dedicated workqueue or system_wq doesn't make any difference in
terms of execution latency anymore.  Sleeping work items no longer
delay execution of other work items.  If mailbox is very latency
sensitive, it might make sense to create a HIGHPRI workqueue but that
usually isn't necessary.

Thank you.

--
tejun
--
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[PATCHSET] workqueue: update workqueue users - replace cre ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 01/32] arm/omap: use system_wq in mailbox, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 02/32] powerpc/cell: use system_wq in cpufreq_spudemand, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 03/32] block: make kblockd_workqueue smarter, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 04/32] bio-integrity: mark kintegrityd_wq highpri a ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 05/32] crypto: mark crypto workqueues CPU_INTENSIVE, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 06/32] acpi: kacpi*_wq don't need WQ_MEM_RECLAIM, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 07/32] cpufreq: use system_wq instead of dedicated ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 08/32] drm/nouveau: use system_wq instead of dev_pr ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 09/32] drm/radeon: use system_wq instead of dev_pri ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 10/32] input/tps6507x-ts: use system_wq instead of ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 11/32] v4l/cx18: update workqueue usage, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 12/32] i2o: use alloc_workqueue() instead of create ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 13/32] misc/iwmc3200top: use system_wq instead of d ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 14/32] wireless/ipw2x00: use system_wq instead of d ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 15/32] wireless/libertas[_tf]: use system_wq instea ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 16/32] scsi/be2iscsi,qla2xxx: convert to alloc_work ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 17/32] scsi/ibmvstgt: use system_wq instead of vtgt ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 18/32] scsi/scsi_tgt_lib: scsi_tgtd isn't used in m ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 19/32] usb/ueagle-atm: use system_wq instead of ded ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 20/32] video/msm_fb: use system_wq instead of dedic ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 21/32] fs/aio: aio_wq isn't used in memory reclaim path, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 22/32] ceph: fsc->*_wq's aren't used in memory recl ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 23/32] net/ceph: make ceph_msgr_wq non-reentrant, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 24/32] dlm: dlm workqueues aren't used in memory re ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 25/32] ext4: convert to alloc_workqueue(), Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 26/32] ocfs2: use system_wq instead of ocfs2_quota_wq, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 27/32] reiserfs: make commit_wq use the default con ..., Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 28/32] xfs: convert to alloc_workqueue(), Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 29/32] net/9p: use system_wq instead of p9_mux_wq, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 30/32] net/9p: replace p9_poll_task with a work, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 31/32] rds/ib: use system_wq instead of rds_ib_fmr_wq, Tejun Heo, (Mon Jan 3, 6:49 am)
[PATCH 32/32] rxrpc: rxrpc_workqueue isn't used during mem ..., Tejun Heo, (Mon Jan 3, 6:49 am)
Re: [PATCH 24/32] dlm: dlm workqueues aren't used in memor ..., Steven Whitehouse, (Mon Jan 3, 6:58 am)
Re: [PATCH 03/32] block: make kblockd_workqueue smarter, Jens Axboe, (Mon Jan 3, 7:00 am)
Re: [PATCH 24/32] dlm: dlm workqueues aren't used in memor ..., Tejun Heo, (Mon Jan 3, 7:01 am)
Re: [PATCH 24/32] dlm: dlm workqueues aren't used in memor ..., Steven Whitehouse, (Mon Jan 3, 7:21 am)
Re: [PATCH 24/32] dlm: dlm workqueues aren't used in memor ..., Tejun Heo, (Mon Jan 3, 7:27 am)
Re: [PATCH 24/32] dlm: dlm workqueues aren't used in memor ..., Steven Whitehouse, (Mon Jan 3, 7:39 am)
Re: [PATCH 10/32] input/tps6507x-ts: use system_wq instead ..., Dan Carpenter, (Mon Jan 3, 7:39 am)
Re: [PATCH 24/32] dlm: dlm workqueues aren't used in memor ..., Tejun Heo, (Mon Jan 3, 7:44 am)
Re: [PATCH 10/32] input/tps6507x-ts: use system_wq instead ..., Todd Fischer, (Mon Jan 3, 9:34 am)
Re: [PATCH 20/32] video/msm_fb: use system_wq instead of d ..., Stanislaw Gruszka, (Mon Jan 3, 10:06 am)
Re: [PATCH 17/32] scsi/ibmvstgt: use system_wq instead of ..., Bart Van Assche, (Mon Jan 3, 10:45 am)
Re: [PATCH 23/32] net/ceph: make ceph_msgr_wq non-reentrant, Sage Weil, (Mon Jan 3, 10:58 am)
Re: [PATCH 22/32] ceph: fsc->*_wq's aren't used in memory ..., Sage Weil, (Mon Jan 3, 10:58 am)
Re: [PATCH 20/32] video/msm_fb: use system_wq instead of d ..., Daniel Walker, (Mon Jan 3, 11:10 am)
Re: [PATCH 01/32] arm/omap: use system_wq in mailbox, Kanigeri, Hari, (Mon Jan 3, 2:35 pm)
Re: [PATCH 11/32] v4l/cx18: update workqueue usage, Andy Walls, (Mon Jan 3, 5:54 pm)
Re: [PATCH 05/32] crypto: mark crypto workqueues CPU_INTENSIVE, Herbert Xu, (Mon Jan 3, 9:38 pm)
Re: [PATCH 17/32] scsi/ibmvstgt: use system_wq instead of ..., Tejun Heo, (Mon Jan 3, 10:20 pm)
Re: [PATCH 01/32] arm/omap: use system_wq in mailbox, Tejun Heo, (Mon Jan 3, 10:24 pm)
Re: [PATCH 11/32] v4l/cx18: update workqueue usage, Tejun Heo, (Tue Jan 4, 1:36 am)
Re: [PATCH 11/32] v4l/cx18: update workqueue usage, Andy Walls, (Tue Jan 4, 6:21 am)
Re: [PATCH 21/32] fs/aio: aio_wq isn't used in memory recl ..., Jeff Moyer, (Tue Jan 4, 8:56 am)