I/O pattern of smbd / optimization of disk subsystem
Min Wai Chan
dcmwai at gmail.com
Sun Oct 5 08:30:14 MDT 2014
This is very interesting.
Does that still apply today on the current version?
On Sun, Oct 5, 2014 at 9:29 PM, Jones <jones.kstw at gmail.com> wrote:
> Hello Heiner,
> This link might be interesting:
> 2014-10-03 22:49 GMT+08:00 Heiner Lesaar <heiner.lesaar at googlemail.com>:
> > Dear list,
> > I am keen to learn more about the characteristics on how smbd accesses
> > disks in terms of request sizes. Does this depend on some of the smb.conf
> > parameters (max xmit etc.) or on the negotiated protocol with the smb
> > client?
> > Can someone give me a hint on how to find out what the characteristic in
> > my usecase would be? I read about blktrace and collectl as some of the
> > suggested tools. Usage is mainly multiple, slow but big streaming reads
> > writes.
> > My goal is to optimize the disk subsystem config (multiple raid5 sets)
> > get the best performance from the disks without suffering from
> > like read/modify/write penalties when the data isn't written in matching
> > allocation sizes to hit the "full stripe" of the disks. Same for read
> > processes obviously.
> > Thanks in advance for any input on this!
> > Heiner
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