https://bugzilla.novell.com/show_bug.cgi?id=338230#c3
David Bailey changed:
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CC| |dbailey@datanetworks.com
--- Comment #3 from David Bailey 2007-11-26 06:46:07 MST ---
I'm seeing similar behavior of openSUSE 10.3 x86-64 on a Dell Precision M90.
With the default configuration, I'm seeing a Load_Cycle_Count / Power_On_Hours
ratio of 30.8216 or nearly 31 load/unloads per minute. This laptop is usually
used with the power adapter plugged in.
This means that the Seagate ST9160823AS drive according to the manufacturer
specifications of somewhere around 600,000 load/unload cycles per drive
lifetime, I can expect only 2.2 years of operational use of the drive. As this
laptop is often on 24 hours per day, this is unacceptable. Because servers and
desktops are implementing power management as well, this is going to impact all
kinds of systems.
I imagine this is related to Linux swap behavior impacting the power management
features of the drive. Since this laptop has 3,354,360 bytes of usable memory,
perhaps we should look into increasing the "cost" of swapping pages out to disk
on systems that are performing power management on their drives? Another
thought would be to pre-cache the important libraries and keep them from
getting flushed during normal use?
Another more radical option would be to disable swap unless memory becomes
critically low, but I've found that disabling swap can impact system stability
in certain cases.
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