[Bug 746670] New: extremely slow file copying on USB flash memory
https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c0 Summary: extremely slow file copying on USB flash memory Classification: openSUSE Product: openSUSE 12.1 Version: Final Platform: i686 OS/Version: openSUSE 12.1 Status: NEW Severity: Major Priority: P5 - None Component: Other AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: crossblade@inbox.lv QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:11.0) Gecko/20100101 Firefox/11.0 When I copy photos/videos (any other files) after first seconds speed falls to couple kbps and system hangs on. after some minutes(!) speed is ok again for couple second and than again falls. And this "waves" I have all the time... Just impossible to copy 1Gb of photos on USB flash... Reproducible: Always Steps to Reproduce: 1.take a lot of photos 2.plug USB flash memory 3.copy files to USB memory Actual Results: impossible to use system, timer shows that files will be copied on flash after some days(!) Expected Results: speed should be about 2-6MB/s -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c kk zhang <kkzhang@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kkzhang@novell.com AssignedTo|bnc-team-screening@forge.pr |puzel@suse.com |ovo.novell.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c2 Jeff Mahoney <jeffm@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |jeffm@suse.com InfoProvider| |crossblade@inbox.lv --- Comment #2 from Jeff Mahoney <jeffm@suse.com> 2012-03-14 15:54:59 EDT --- I've seen this happen with cheap flash drives. They'll buffer and flush internally, causing performance hiccups like that. Do you get different performance characteristics on other OSes or does it behave the same? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c3 Vadim Krasovsky <crossblade@inbox.lv> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|crossblade@inbox.lv | --- Comment #3 from Vadim Krasovsky <crossblade@inbox.lv> 2012-03-15 09:41:59 UTC --- It works fine on other system (win xp). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c Jeff Mahoney <jeffm@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|kernel-maintainers@forge.pr |oneukum@suse.com |ovo.novell.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c4 Oliver Neukum <oneukum@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |crossblade@inbox.lv --- Comment #4 from Oliver Neukum <oneukum@suse.com> 2012-03-26 06:23:41 UTC --- Could you retry with the filesystem on the device mounted with "-o sync" ? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c5 --- Comment #5 from Vadim Krasovsky <crossblade@inbox.lv> 2012-04-13 22:06:07 UTC --- with "-o sync" speed is stable but only 100kbps... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c6 --- Comment #6 from Oliver Neukum <oneukum@suse.com> 2012-04-16 08:45:43 UTC --- We may be driving the sector management in the drive into the worst case. Did you partition the device yourself? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c7 --- Comment #7 from Vadim Krasovsky <crossblade@inbox.lv> 2012-04-17 10:26:41 UTC --- (In reply to comment #6)
We may be driving the sector management in the drive into the worst case. lets do it! (if I've got you correctly)
Did you partition the device yourself? formatted it in win XP (fat32)
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https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c8 --- Comment #8 from Oliver Neukum <oneukum@suse.com> 2012-04-17 10:34:13 UTC --- (In reply to comment #7)
(In reply to comment #6)
We may be driving the sector management in the drive into the worst case. lets do it! (if I've got you correctly)
On a SCSI level your device pretends to have a sector size of 512bytes. This is most likely a lie. Writing small amounts of data is very inefficient on an SSD.
Did you partition the device yourself? formatted it in win XP (fat32)
It is possible that XP doesn't generate an optimal partitioning. Please attach the output of "fdisk -l /dev/sdX" (X to be replaced with the letter of your device) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=746670 https://bugzilla.novell.com/show_bug.cgi?id=746670#c9 Andreas Nordal <andreas_nordal_4@hotmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |CLOSED CC| |andreas_nordal_4@hotmail.co | |m InfoProvider|crossblade@inbox.lv | Resolution| |DUPLICATE --- Comment #9 from Andreas Nordal <andreas_nordal_4@hotmail.com> 2012-04-30 15:55:14 UTC --- This is very probably just the recent hugepage issue, which is solved, btw. Your symptoms match perfectly. *** This bug has been marked as a duplicate of bug 710133 *** http://bugzilla.novell.com/show_bug.cgi?id=710133 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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