Eric wrote:
Hi Mark,
I do a lot new test, re-install all system and arrive now to this :
Test without SMP : 29 sec
Test with SMP : 37 sec
Wich is very far from the 62 sec we have before with SMP and seems to be
"normal" for most people saying SMP and 4.11 are not so friend they
seems to be. Ok for you?
It seems that problem before, came from perc4 controller configuration.
It seems that if you change configuration on fly you don't have the same
result ;=( as if you re-create the logical drive with good param and
put same param onfly .
Good configuration is for me disable any cache :
On creation and on configuration : Write Policy --> Writethru
Read Policy -->
non-adaptive
Don't know why difference was more important with SMP but it seems to
be now ok.
As there is still few difference with SMP, I now do same test but
launching 1, 2, or 3 test in same time to see if it's usefulle for me to
have SMP kernel. Result is really near but I doubt that it's not
hardrive that slow down all system.
Do you know a way to know the hard drive utilisation as with top?
(iostat always return 0)
Do you know a way to do high ramdrive? (I try with mount_mfs but it
always limit me to 400 Mo)
Well done - so you nailed it down to the controller! (chuckles - you
might find 6.0 works better than 4.11 with SMP *now*)....
With respect to the perc4 not showing up on iostat, could be that 4.11's
support for this card is rudimentary - I would suggest starting a new
thread asking about this!
Cheers
Mark
_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-smp
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
