On Thursday 11,March,2010 04:58 PM, Thomas O. wrote:
> Public bug reported:
>
> Binary package hint: pm-utils
>
> If I run a CPU heavy process on my computer (e.g. VirtualBox) just
> before I suspend, then resume takes much longer than expected, and
> during resume, disk I/O (on the HDD) is very high and the disk is
> reading or writing some data. Approximately anywhere from 30 seconds to
> 5 minutes may elapse before the computer completely resumes; upon
> hitting the lock screen dialog, disk I/O drops to almost zero.
You probably mean a memory heavy process. VirtualBox, among other virtual
machine software use a lot of memory. Hibernation involves copying the entire
contents of the memory into the disk, and resuming involves the reverse.
Naturally, if there is more memory being used, then more data needs to be
transferred between the memory and the disk, and since there is a limit to disk
throughput, more time will be needed. This is expected behaviour, so I am
marking this bug invalid.
status invalid
--
Kind regards,
Chow Loong Jin (GPG: 0x8F02A411)
Ubuntu Developer
** Changed in: pm-utils (Ubuntu)
Status: New => Invalid
--
high disk I/O on resume if CPU% is high when suspend is initiated
https://bugs.launchpad.net/bugs/537193
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