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** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Tags added: kernel-request-3.13.0-24.46
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https://bugs.launchpad.net/bugs/821610
Title:
ionice doesn't nice the complete writing process
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
I'm using Ubuntu 11.10 dev. I'm starting apache with the command "chrt -i 0
ionice -c 3 /usr/sbin/apache2ctl". On my system is full data journaling
enabled. Theoretically if apache or a child process from apache is writing
something to the disk it shouldn't affect any other applications like games
because apache has the lowest cpu and I/O priority possible. But sometimes a
child process from apache is writing a lot to my disk and I can't do much at
this time anymore. If I play a game it is freezing every second and unplayable.
If I disable full data journaling it is much better. This is why I think the
[jdb2/sda1-8] process doesn't inherit the nice/ionice from the writing process.
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k3.11.0-12-generic.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
ApportVersion: 2.12.6-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: sworddragon 4276 F.... plugin-containe
/dev/snd/pcmC0D0p: sworddragon 4276 F...m plugin-containe
/dev/snd/timer: sworddragon 4276 f.... plugin-containe
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'SB'/'HDA ATI SB at 0xf9ff4000 irq 16'
Mixer name : 'Realtek ALC662 rev1'
Components : 'HDA:10ec0662,18497662,00100101'
Controls : 36
Simple ctrls : 18
CurrentDmesg:
Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg
-'] failed with exit code 1: comm: /var/log/dmesg: No such file or directory
dmesg: write failed: Broken pipe
DistroRelease: Ubuntu 14.04
EcryptfsInUse: Yes
IwConfig: Error: [Errno 2] No such file or directory
Lsusb: Error: [Errno 2] No such file or directory
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
MarkForUpload: True
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic
root=UUID=05338ff8-a226-421b-90a4-1dd45199f783 ro
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty
Uname: Linux 3.11.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo wireshark
WifiSyslog:
dmi.bios.date: 02/05/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.30
dmi.board.asset.tag: BC5FF4739C55
dmi.board.name: 960GM/U3S3 FX
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP1.30:bd02/05/2013:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rn960GM/U3S3FX:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
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