Mailinglist Archive: opensuse (880 mails)

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Re: [opensuse] Slow file copying on openSUSE 12.3
  • From: Greg Freemyer <greg.freemyer@xxxxxxxxx>
  • Date: Wed, 14 Aug 2013 13:40:48 -0400
  • Message-id: <>
On Wed, Aug 14, 2013 at 7:58 AM, Roger Oberholtzer <roger@xxxxxx> wrote:
If nothing you're going to have to tell us about the storage stack at
a minimum. (volumes / raid / filesystem type)

SuperMicro motherboard with Haswell 4C Core i7-4770 3.4G 8M 5GT/s DMI

SATA3 disks (1000MB Western Digital Velicoraptor 10K/ 64, 3,5") via intel
chipset spec above.

ext4 with defaults. Basic partitioning. No LVM or RAID.

We have done an openSUSE 12.3 update, and the problem persists.

Does dd from the raw device run quickly?

ie. dd if=/dev/sdx of=/dev/null count=1000000

That count is 1 million, so with 512 byte blocks that's half a GB. It
should take 5 or 10 seconds.

If you can destroy the data, what about the speed of writes with dd?

If you can't write to the raw device do the above with a file. 1/2 a
GB is not too big to fit unless your filesystem is really full.

Greg Freemyer
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