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Fedora Arm Secondary Architecture/Storage performance

Goal

To test the performance of various storage solutions for the ARM hardware devices.

Performance Results

USB PATA

Version 1.03e       ——Sequential Output—— –Sequential Input- –Random-

-Per Chr- –Block– -Rewrite- -Per Chr- –Block– –Seeks–

Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP

fedora-arm       2G  5768  96 28790  24 12380  11  5936  96 25991  10 121.0   0

——Sequential Create—— ——–Random Create——–

-Create– –Read— -Delete– -Create– –Read— -Delete–

files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP

16 12640  97 +++++ +++ 22387  99 10765  82 +++++ +++ 21615 100

fedora-arm,2G,5768,96,28790,24,12380,11,5936,96,25991,10,121.0,0,16,12640,97,+++++,+++,22387,99,10765,82,+++++,+++,21615,100


NFS

Version 1.03e       ——Sequential Output—— –Sequential Input- –Random-

-Per Chr- –Block– -Rewrite- -Per Chr- –Block– –Seeks–

Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP

fedora-arm       2G  5605  92 43362  16 20478  53  5619  98 51789  85  1201  35

——Sequential Create—— ——–Random Create——–

-Create– –Read— -Delete– -Create– –Read— -Delete–

files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP

16    50   0  3480  27    55   1    49   0  3948  26    53   0

fedora-arm,2G,5605,92,43362,16,20478,53,5619,98,51789,85,1200.7,35,16,50,0,3480,27,55,1,49,0,3948,26,53,0

iSCSI

Version 1.03e       ------Sequential Output------ --Sequential Input- --Random-

-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--

Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP

fedora-arm       2G  4923  82 31503  30  1827   3  5537  96 59147  84  2514  44

------Sequential Create------ --------Random Create--------

-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--

files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP

16 11785  92 +++++ +++ 21841  99 12533  98 +++++ +++ 21201 100

fedora-arm,2G,4923,82,31503,30,1827,3,5537,96,59147,84,2514.5,44,16,11785,92,+++++,+++,21841,99,12533,98,+++++,+++,21201,100

Summary

Write

Transfer Speed Percentage Increase CPU Usage Percentage Increase
PATA 28,790 KB/s 0% 24% 0%
NFS 43,363 KB/s 50% 16% -50%
iSCSI 31,503 KB/s 9% 30% 25%

Read

Transfer Speed Percentage Increase CPU Usage Percentage Increase
PATA 25,991 KB/s 0% 10% 0%
NFS 51,789 KB/s 99% 85% 850%
iSCSI 59,147 KB/s 127% 84% 840%

iSCSI

Initiator config

Host is OpenRD

  1. Install the iscsi-initiator-utils package.
  2. Placed "InitiatorName=iqn.2000-10.ca.on.senecac.hongkong" in /etc/iscsi/initiatorname.iscsi
  3. Start the iscsi and iscsid services.
  4. Discover the remote targets: iscsiadm -m discovery -t sendtargets -p hongkong:3260
  5. List the targets: iscsiadm -m node -- the remote target(s) should be shown.
  6. Login to the targets: iscsiadm -m node -l
  7. You will now have an additional scsi disk device. Use this as one element of a RAID-1 array, using local storage (an LV or a looped-back file) as the other element.
  8. Mount the new RAID-1 array and create a filesystem on it. Place some files there.
  9. Unmount the filesystem, stop the array, log out of the iSCSI disk (iscsiadm -m node -u).
  10. Verify that the filesystem can be locally read on the machine hosting the target.

PATA/USB Config

  • PATA drive connected via USB
  • Device is /dev/sda1 if no other storage is connected

Target Config

  • Host is HongKong
  • IQN is "InitiatorName=iqn.2000-10.ca.on.senecac.hongkong"
  • Target is "target0" which is connected to the LV HongKong/arm1iscsi, size 100GB

Results

See Fedora ARM Secondary Architecture/iSCSI for note on problems encountered using iSCSI.

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