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[Intel HM76 Express] Parallel disk access are locking the OS - how to fix it?

HM76 disk locks paging

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I'm trying since a while to optimize Mac running on an Asus n56vm, and one of the outstanding problem is that parallel random accesses to the disk lock up the OS!
This makes Chrome and some other process-and-disk intensive apps hard to use, and in general makes everything somewhat unresponsive.

I've worked around this by disabiling paging, thus removing most disk read/writes...
however I would like to fix the underlying problem and make everything faster!

The chipset is an Intel HM76, and I don't really know which kexts/settings might be causing the locks...

so my first question is - what kexts are involved in disk accesses for this chipset?
That is, for SATA, AHCI, etc. I can't be sure about which ones they are :/


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