7;t handle something or recieve buffer size is to small?
If the window size drops to 0, it means the receive buffer on the receiving
system is full and waiting to be flushed by the application.
Considering the fact that you're sending 65M per second, a 16M buffer might
not be large enough.
Keep in
mind that not everyone on the list is interested in every conversation.
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Collaborative Fusion Inc.
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Phone: 412-422-3463x4023
IMPORTANT: This message contains confidential informat
-0xff9707ff irq 18 at device 31.2 on pci0
ad14: 476940MB at ata7-master SATA150
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is spotty. And we've seen cards that work in
FreeBSD, but do so at far below their claimed throughput. There are apparently
some inefficiencies in the drivers.
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Bill Moran
Collaborative Fusion Inc.
wmo...@collaborativefusion.com
Phone: 412-422-3463x4023
the consumer grade
RAID cards, and probably more reliable than most of them as well.
Controllers make a huge difference, even in server class RAID (in
my experience). There is a significant gap in performance between
the good stuff and the good enough stuff.
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Bill Moran
http://www.potent
ou just need
temp files, why doesn't the app clean up its temp files when it's
done with them?
If you have access to the developers, I think you'll be able to come
up with a much better solution by working with them.
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Bill Moran
http://www.pote
In response to Arkadi Shishlov :
> Its probably "dirhash' that is not enabled or its cache is too small for the
> task.
I'm no expert, but I thought dirhash only improved read speed. His
bottleneck would be writes.
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Bill Moran
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e, then you're
comparing apples to atom bombs.
If this is a directory that you blow away on a regular schedule, you'd
do much better to make it a dedicated partition and simply reformat
it.
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Bill Moran
http://www.potentialtech.com
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In response to Ivan Voras <[EMAIL PROTECTED]>:
> Bill Moran wrote:
> > In response to Brett Bump <[EMAIL PROTECTED]>:
> >> I'm seeing signal 6's on apache and imapd (never happened before)
> >> network errors, serious response time errors and gen
dicator that you've compiled binaries that are
almost, but not quite compatible with your CPU.
If this machine has been 4.X for a while, it's probably old hardware.
Make sure you're using the correct CPU definition in your kernel
config and in your make configuration.
What _is_
re out of ideas for tuning, so we kindly ask for ideas on
> tuning the system to bring down the CPU usage from the em and the system
> CPU usage. We tried tuning the em int_delay and abs_int_delay but
> without success.
Enable polling on the interface and see if that helps. See man polli
52 157834 1294
115
Final score for writes:21
Final score for reads : 2442
Certainly looks like that RAID card sucks. Unfortunately, I don't know
what those mpt0 alerts are about.
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Bill Moran
Colla
lar specs (same
> > > Ethernet Card) but is a Windows XP box.
> >
> > Windows should report the interface speed too: unplug the cable, plug it
> > again and watch for the fancy popup on the taskbar. Or check the interface
> > properties box.
> > --
> > Eygen
oot.html#PAE
Cool information, kind of blows the "FreeBSD's performance sucks"
argument out of the water. Thanks for taking the time to run the
tests and post!
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Bill Moran
Collaborative Fusion Inc.
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one. I can provide the tracefile if anyone is interested.
Please post this somewhere and provide a URL. I'm no kernel expert,
but I've had success speeding stuff up through ktraces before ...
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Collaborative Fusion Inc.
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. SCSI/SATA) in
addition to the differences in hardware connecting the disks, and
the drivers for that hardware. There are dozens of places where
the difference could be occurring. I would guess that the drive
itself does write caching, and this heavily optimizes async writes,
but can't improve
e
> on synchonizaton. If you're a Dell man (and already paying the Dell
> tax), consider the Sun 1U's. They offer up to 4 cores in a 1U.
Lost me here.
Are you saying 1U units from Sun? Or does Dell have a 1U called a
"Sun"?
I am pretty-much locked into Dell - decisi
hwhile or not? I can simulate a test load at any time, but I
don't know how to tell whether the cache is the bottleneck of the
CPU or not.
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