[Gluster-users] 3.2.2 Performance Issue

[Joey McDonald]

On Tue, Aug 9, 2011 at 11:19 PM, Mohit Anchlia <mohitanchlia at gmail.com>wrote:

> And can you also give the mount options of gluster fs?
>
>
Sure:

[root at vm-container-0-0 ~]# tail -2 /etc/fstab
/dev/sdb1               /gluster                ext3    defaults        0 1
127.0.0.1:pifs          /pifs                   glusterfs defaults,_netdev 0
0

I'm not running VM's off the gluster share but that's the general idea of
where I'd like to get with this platform. That's obviously going to require
some different mount options but I'd like to get this performance issue
resolved before I start in on that.


   --joey




> On Tue, Aug 9, 2011 at 4:41 PM, Joey McDonald <joey at scare.org> wrote:
> >
> >
> > On Tue, Aug 9, 2011 at 5:40 PM, Joey McDonald <joey at scare.org> wrote:
> >>
> >> Hi Pavan,
> >> Thanks for your quick reply, comments inline:
> >>
> >>>
> >>> 1. Are these baremetal systems or are they Virtual machines ?
> >>
> >> Bare metal systems.
> >>
> >>>
> >>> 2. What is the amount of RAM of each of these systems ?
> >>
> >> They all have 4194304 kB of memory.
> >>
> >>>
> >>> 3. How many CPUs do they have ?
> >>
> >> They each have 8 procs.
> >>
> >>>
> >>> 4. Can you also perform the dd on /gluster as opposed to /root to check
> >>> the backend performance ?
> >>
> >> Sure, here is that output:
> >>
> >> [root at vm-container-0-0 ~]# dd if=/dev/zero of=/gluster/dd_test.img
> bs=1M
> >> count=2000
> >> 2000+0 records in
> >> 2000+0 records out
> >> 2097152000 bytes (2.1 GB) copied, 6.65193 seconds, 315 MB/s
> >>
> >>>
> >>> 5. What is your disk backend ? Is it direct attached or is it an array
> ?
> >>
> >> Direct attached, /gluster is /dev/sdb1, 1TB SATA drive (as is /dev/sda):
> >> [root at vm-container-0-0 ~]# hdparm -i /dev/sdb
> >> /dev/sdb:
> >>  Model=WDC WD1002FBYS-02A6B0                   , FwRev=03.00C06,
> SerialNo=
> >>     WD-WMATV5311442
> >>  Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs
> FmtGapReq
> >> }
> >>  RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
> >>  BuffType=unknown, BuffSize=32767kB, MaxMultSect=16, MultSect=?0?
> >>  CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
> >>  IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
> >>  PIO modes:  pio0 pio3 pio4
> >>  DMA modes:  mdma0 mdma1 mdma2
> >>  UDMA modes: udma0 udma1 udma2
> >>  AdvancedPM=no WriteCache=enabled
> >>  Drive conforms to: Unspecified:  ATA/ATAPI-1 ATA/ATAPI-2 ATA/ATAPI-3
> >> ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7
> >>  * signifies the current active mode
> >>
> >>>
> >>> 6. What is the backend filesystem ?
> >>
> >> ext3
> >>
> >>>
> >>> 7. Can you run a simple scp of about 10M between any two of these
> systems
> >>> and report the speed ?
> >>
> >>  Sure, output:
> >> [root at vm-container-0-1 ~]# scp vm-container-0-0:/gluster/dd_test.img .
> >> Warning: Permanently added 'vm-container-0-0' (RSA) to the list of known
> >> hosts.
> >> root at vm-container-0-0's password:
> >> dd_test.img
> >>                                                               100%
> 2000MB
> >>  39.2MB/s   00:51
> >>
> >>    --joey
> >>
> >>
> >
> >
> > _______________________________________________
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> > Gluster-users at gluster.org
> > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users
> >
> >
>
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