for machines doing mostly fileserving and routing even 2 CPUs may
be not well utilized
That is only true if the process is giant locked. When look at dmesg,
look for things that say GIANT-LOCKED and those will be ones confined
to one processor. There has been a massive push since 5 to get ride
Vulpes Velox wrote:
That is only true if the process is giant locked. When look at dmesg,
look for things that say GIANT-LOCKED and those will be ones confined
to one processor.
Which happens to include all SCSI devices I've encountered...
sigh.
And it's NOT rare to see giant locked
On 3/12/07, Ivan Voras [EMAIL PROTECTED] wrote:
Vulpes Velox wrote:
That is only true if the process is giant locked. When look at dmesg,
look for things that say GIANT-LOCKED and those will be ones confined
to one processor.
Which happens to include all SCSI devices I've encountered...
Nikolas Britton wrote:
On 3/12/07, Ivan Voras [EMAIL PROTECTED] wrote:
Which happens to include all SCSI devices I've encountered...
sigh.
And it's NOT rare to see giant locked processes on a heavily loaded web
server.
No Giants Here:
arcmsr0: Areca SATA Host Adapter RAID Controller
On 3/12/07, Ivan Voras [EMAIL PROTECTED] wrote:
Nikolas Britton wrote:
On 3/12/07, Ivan Voras [EMAIL PROTECTED] wrote:
Which happens to include all SCSI devices I've encountered...
sigh.
And it's NOT rare to see giant locked processes on a heavily loaded web
server.
No Giants Here:
On Sat, 10 Mar 2007 22:40:47 +0100 (CET)
Wojciech Puchar [EMAIL PROTECTED] wrote:
I have heard it does not scale well above 4
to be clear.
kernel task (disk I/O, network etc.) is always on first processor,
everything else on any CPU.
so as long as disk I/O network and other kernel
I have heard it does not scale well above 4
On Mar 11, 2007, at 12:45 AM, Susanth K wrote:
Dear Friends,
Howmany CPU Does The FreeBSD 6.2 Support ? and what will be the
support in 7
THANKS IN ADVANCE
Your's Truly
SUSANTH K
___
On Sun, Mar 11, 2007 at 01:18:12AM +0800, David Schulz wrote:
I have heard it does not scale well above 4
It all depends on your workload. FreeBSD 7.0 will have good scaling
on 8 or more CPUs on common workloads, see e.g.:
http://people.freebsd.org/~kris/scaling/mysql.html
Kris
Susanth K wrote:
Dear Friends,
Howmany CPU Does The FreeBSD 6.2 Support ? and what will be the support
in 7
The maximum number of CPUs that 6.2 will make use of is 16
(kern.smp.maxcpus: 16). I don't know if it will be raised in 7.0, but
since 7.x should support UltraSPARC T1, it might.
How
It all depends on your workload. FreeBSD 7.0 will have good scaling
on 8 or more CPUs on common workloads, see e.g.:
http://people.freebsd.org/~kris/scaling/mysql.html
Kris
anyway it's worth to actually test machine before buying.
even for 1 cpu systems lots of crappy motherboards/BIOSES
I have heard it does not scale well above 4
to be clear.
kernel task (disk I/O, network etc.) is always on first processor,
everything else on any CPU.
so as long as disk I/O network and other kernel tasks are able to fit on
one processor that's OK.
for machines doing mostly pure
On Sat, Mar 10, 2007 at 10:40:47PM +0100, Wojciech Puchar wrote:
I have heard it does not scale well above 4
to be clear.
kernel task (disk I/O, network etc.) is always on first processor,
everything else on any CPU.
This is incorrect for approximately the last 7 years (it is only true
to be clear.
kernel task (disk I/O, network etc.) is always on first processor,
everything else on any CPU.
This is incorrect for approximately the last 7 years (it is only true
for FreeBSD 4.x and below).
Kris
hmm.. nice.
___
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