Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 8 Oct 1998 17:19:27 -0600 (MDT)
From:      "Justin T. Gibbs" <gibbs@narnia.plutotech.com>
To:        shimon@simon-shapiro.org
Cc:        scsi@FreeBSD.ORG
Subject:   Re: Give a Hand of Appreciation to the CAM Team
Message-ID:  <199810082319.RAA25702@narnia.plutotech.com>
In-Reply-To: <XFMail.981008191021.shimon@simon-shapiro.org>

next in thread | previous in thread | raw e-mail | index | archive | help

In article <XFMail.981008191021.shimon@simon-shapiro.org> you wrote:

...

> Now to the CAM results:
> 
> *  P6-200 SMP:  128 processes LA = 50.51, 1,671 tps (Transfers/Sec.)
>                 256 processes LA = 158-188, 1329-1898 tps
>                 320 processes LA = 199-240, 162-1904 tps
>    We could not get much higher than that, the system simply dies.  No
>    crashes, but no response to anything is visible.  Current processes
>    seemed to still be running.
>
> *  P-II- 350 UP: 256 processes LA = 59-67, 1,536-1,738 tps
>                  512 Processes LA = 250-270, 569-1248 tps.
>    We could not scale any higher.  Same symptoms as SMP at around 320
>    processes.

Can you elaborate on 'the system simply dies'?  Does I/O stop?  Can you
get into the debugger?

We can analyze and correct any performance bottlenecks in the system
after 3.0R ships, but I need to know more about your symptoms so
I can tell if this is a showstopper for 3.0.

Thanks,
Justin

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-scsi" in the body of the message



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199810082319.RAA25702>