[Samba] Avoiding constant HDD access
jra at samba.org
Fri Nov 9 04:01:42 UTC 2018
On Fri, Nov 09, 2018 at 04:54:59AM +0300, Albert Berger via samba wrote:
> On Thu, Nov 08, 2018 at 07:18:40PM +0000, Rowland Penny via samba wrote:
> > That is what I thought.
> > I have had 'pidstat' running on a Unix domain member, Samba
> > 4.6.15-Debian, for quite sometime and I got two lines like this:
> > 15:13:57 0 3571 -1.00 -1.00 -1.00
> > 1 /usr/sbin/winbindd
> > and this twice:
> > 11:38:17 10000 27033 -1.00 -1.00 -1.00
> > 108 /usr/sbin/smbd -D
> > Start time: 10:10:37
> > End time: 18:47:37
> > I have also run 'pidstat' on a Raspberrypi, Samba 4.5.12-Debian
> > and got similar lines to the above, just slightly more often, but no
> > where near as often as the OP.
> > If it helps, I can set up a standalone server on the rpi tomorrow and
> > see what I get.
> > Rowland
> I wonder does enabling updating file access times during mounting the
> file system have something to do with this case? If updating access times
> is enabled (as in my case) then even file reading operations will be
> causing HDD writes: inodes will be updated with new file access
> times. I wrote about this in my previous message, but it went
What ! You're not mounting with noatime or relatime ? That's
*crazy*, and will cause many writes that are unneeded.
Don't do that ! Why would you do that ?
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