improving VM - questions

[Wojciech Puchar]

>>> right. but still 32 pages is 128kB, but i see 64kB I/Os in systat/vmstat
>>
>> Right, but the comment says to not define MAX_PAGEOUT_CLUSTER to a value greater
>> than 32, but you did that.  So all bets could be off unless you examined the
>> code and know exactly what should happen in this case.
>
> I suspect it might be DFLTPHYS that splits disk i/o into 64K blocks on
> the driver level.
can i increase DFLTPHYS as well as i did with MAXPHYS without problems?