Notebook Lenovo G770
wad@wad-G770:~/$ cat /etc/*rele*
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=13.04
DISTRIB_CODENAME=raring
DISTRIB_DESCRIPTION="Ubuntu 13.04"
VERSION="13.04, Raring Ringtail"
wad@wad-G770:~/$ uname -a
Linux wad-G770 3.8.0-25-generic #37-Ubuntu SMP Thu Jun 6 20:47:07 UTC 2013
x86_64 x86_64 x86_64 GNU/Linux
wad@wad-G770:~/$ sudo iotop -o -d 10
Total DISK READ: 125.85 K/s | Total DISK WRITE: 303.86 K/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
282 be/3 root 0.00 B/s 12.74 K/s 0.00 % 84.76 % [jbd2/sda5-8]
9228 be/4 wad 118.28 K/s 407.81 B/s 0.00 % 9.52 % geany
9071 be/4 wad 0.00 B/s 93.59 K/s 0.00 % 0.46 % thunderbird
9109 be/4 wad 407.81 B/s 6.37 K/s 0.00 % 0.15 % thunderbird
9095 be/4 wad 0.00 B/s 121.47 K/s 0.00 % 0.00 % thunderbird
jbd2/sda5-8 takes up to 100% IO operation
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https://bugs.launchpad.net/bugs/607560
Title:
jbd2 writing block every 5 - 10 seconds, preventing disk spin-down and
making noise
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