Re: high load, no bottleneck

[manu%netbsd.org@localhost (Emmanuel Dreyfus)]

Thor Lancelot Simon <tls%panix.com@localhost> wrote:

> In AHCI mode, you might be able to use ordered tags or "force unit access"
> (does SATA have this concept per command?) to force individual transactions
> or series of transactions out, rather than flushing out all the data every
> time just to get the metadata into the journal on-disk.  But that would
> take some work on our ATA subsystem.

On another machine, I already had performance problems with SATA
controllers in IDE emulation mode (recognized as piixide), which
disapeared when selecting AHCI mode in the BIOS (turning it to be
recognized as ahcisata)

I will report on this as soon as the server will be idle enough to be
rebooted.

-- 
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu%netbsd.org@localhost