[Bug 1189645] Re: 13.04, lag under desktop environments

[Alan Pater]

With the bios update, it takes longer to trigger, but eventually, yes,
the system slows down. Videos get out of sync, opening applications,
moving windows, menus all get really slow.

~$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
A06
02/02/2008

In an attempt to quantify, I run hdparm and gtkperf. They both show
large losses in performance.

Before:
~$ gtkperf -a
Total time: 12.02

~$ sudo hdparm -tT /dev/sda
 Timing cached reads:   1674 MB in  2.00 seconds = 837.49 MB/sec
 Timing buffered disk reads:  64 MB in  3.11 seconds =  20.57 MB/sec

After:
~$ gtkperf -a
Total time: 40.88

~$ sudo hdparm -tT /dev/sda
 Timing cached reads:   442 MB in  2.00 seconds = 221.04 MB/sec
 Timing buffered disk reads:  62 MB in  3.05 seconds =  20.31 MB/sec

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Title:
  13.04,  lag under desktop environments

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