Ubuntu
linux package

[STAGING] btrfs performance on SSD 2.6.35-6.9-generic

Bug #600846 reported by Anthony Hook on 2010-07-01

This bug report is a duplicate of: Bug #601299: btrfs fsync() is extremely slow. Edit Remove

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Incomplete	Undecided	Unassigned

Bug Description

I installed Maverick from the daily alternate CD and have the following setup:

50mb /boot ext2 (defaults)
8gb / btrfs (defaults)
32gb /home btrfs (defaults)

When installing, it took over 12 hours to complete the setup. I have two ASUS-PHISON SSDs in this netbook. After seeing this: https://btrfs.wiki.kernel.org/index.php/FAQ#Is_Btrfs_optimized_for_SSD.3F I tried to add 'ssd' to my options in fstab, but this still does not help.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-6-generic 2.6.35-6.9
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-6.9-generic 2.6.35-rc3
Uname: Linux 2.6.35-6-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: anthony 1535 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf7eb8000 irq 44'
   Mixer name : 'Realtek ALC269'
   Components : 'HDA:10ec0269,1043834a,00100004'
   Controls : 10
   Simple ctrls : 6
Date: Thu Jul 1 18:40:51 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100628)
MachineType: ASUSTeK Computer INC. 1000
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-6-generic root=/dev/sda2 ro quiet splash
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.37
SourcePackage: linux
StagingDrivers: rt2860sta
Title: [STAGING]
dmi.bios.date: 06/11/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1003
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 1000
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTek Computer INC.
dmi.chassis.version: x.x
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1003:bd06/11/2009:svnASUSTeKComputerINC.:pn1000:pvrx.x:rvnASUSTeKComputerINC.:rn1000:rvrx.xx:cvnASUSTekComputerINC.:ct10:cvrx.x:
dmi.product.name: 1000
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.

Tags:

Revision history for this message

Anthony Hook (anthonyhook) wrote on 2010-07-01:

fstab Edit (825 bytes, text/plain)
AlsaDevices.txt Edit (403 bytes, text/plain; charset="utf-8")
BootDmesg.txt Edit (48.6 KiB, text/plain; charset="utf-8")
Card0.Amixer.values.txt Edit (1.3 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.0.txt Edit (9.0 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (2.2 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (1.8 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (520 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (11.5 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (474 bytes, text/plain; charset="utf-8")
PciMultimedia.txt Edit (612 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.4 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.7 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (188 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (98.4 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (211.5 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (435.1 KiB, text/plain; charset="utf-8")

summary:

- [STAGING] btrfs performance on SSD
+ [STAGING] btrfs performance on SSD 2.6.35-6.9-generic

Revision history for this message

Jeremy Foshee (jeremyfoshee) wrote on 2010-07-06:

Hi Anthony,

If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

tags:	added: kj-triage
Changed in linux (Ubuntu):
status:	New → Incomplete

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