On 2/5/17 7:29 pm, Miroslav Lachman wrote:
There is interesting comparison of implementation in different
shells (csh, tcsh, bash, dash...) in different application or
different libraries (glibc, BSD libc, MacOS)
Glob Matching Can Be Simple And Fast Too
https://research.swtch.com/glob
I am no
On 17/06/2016 3:16 PM, Jason Zhang wrote:
Hi,
I am working on storage service based on FreeBSD. I look forward to a good
result because many professional storage company use FreeBSD as its OS. But I
am disappointed with the Bad performance. I tested the the performance of LSI
MegaRAID 9260
I think I need to dig deep to
find the root cause.
Regards,
Csaba
2015.05.25. 4:30 keltezéssel, Julian Elischer írta:
On 5/24/15 11:12 PM, Cs wrote:
Hi all,
I have two FreeBSd 10.1-RELEASE servers connected to each other.
They were connected via cross link, but they are connected to a
cisco
On 5/24/15 11:12 PM, Cs wrote:
Hi all,
I have two FreeBSd 10.1-RELEASE servers connected to each other.
They were connected via cross link, but they are connected to a
cisco switch now. When transferring huge files (50-500GB backup
files) via Gigabit (it is important!) the network randomly di
On 9/23/14, 4:38 PM, Stefan Parvu wrote:
... I rather wish I could get the same information via sysctl. (Well,
something seems to be available via the "opaque" kern.devstat.all
sysctl(8) variable, but sysctl(8) doesn't display all of it, and parsing
it seems as if that would require knowledge ab
On 10/10/13 10:02 PM, Ivan Voras wrote:
On 07/10/2013 19:28, David Wolfskill wrote:> At work, we have a bunch of
machines that developers use to build some
software. The machines presently run FreeBSD/amd64 8.3-STABLE @rxx
(with a few local patches, which have since been committed to stable
On 10/20/11 11:30 PM, Hartmann, O. wrote:
As I'm not a developer, but for scientific purposes highly interested in
using GPUs, the only way of doing HPC computing at the moment is with
nVidias TESLA/nVidia consumer graphics cards and LINUX, since on Linux
one willing to use the GPU has the necess
On 9/23/11 12:04 AM, Hartmann, O. wrote:
I was wondering if the SUN Grid Engine, located in port
sysutils/sge6[012] is still broken due to utmpx.
My department uses this GRID engine on Linux and since a long time I
wish to use it also on FreeBSD.
Are there alternatives? What are people using on
On 9/14/11 6:35 PM, Jon Schipp wrote:
Has anyone used the zero-copy mechanism for an increased performance in
packet capturing?
I'm on FreeBSD 8.2-RELEASE, I was thinking about trying it. It's for a
network monitoring system, it just grabs and dumps all data
from all my network segments. I've not
On 1/28/11 8:15 AM, Stefan Lambrev wrote:
The overhead comes from badly written software.
This software is optimized for linux and you have to optimize it for freebsd,
then you will have the same overhead.
All those *popular* benchmarks like hping, iperf, netperf have some strange
optimizations
On 11/18/10 3:37 PM, Alexander Best wrote:
On Fri Nov 19 10, Daniel Nebdal wrote:
On Fri, Nov 19, 2010 at 12:06 AM, Alexander Kabaev wrote:
On Thu, 18 Nov 2010 18:56:35 +
Alexander Best wrote:
On Thu Nov 18 10, Matthew D. Fuller wrote:
On Thu, Nov 18, 2010 at 06:23:24PM + I heard t
On 11/18/10 10:55 AM, Lucius Windschuh wrote:
2010/11/18 Andriy Gapon:
[Grouping of processes into TTY groups]
Well, I think that those improvements apply only to a very specific usage
pattern
and are greatly over-hyped.
But there are serious issue if you use FreeBSD as a desktop OS with
SMP
On 11/5/10 5:26 AM, Erik Cederstrand wrote:
Den 04/11/2010 kl. 18.07 skrev grarpamp:
Not as comparison with FreeBSD but ideas for
tracking FreeBSD performance across release/releng.
http://www.phoronix.com/scan.php?page=article&item=linux_2612_2637&num=1
Provided the version of the unit test
On 10/25/10 9:55 AM, David Wolfskill wrote:
On Wed, Oct 20, 2010 at 04:50:10PM -0700, Julian Elischer wrote:
...
try the 7.x machine but running the 8.x kernel.. i.e. change nothing,
but boot the new kernel.
...
OK; here are results of previous tests, along with the above. As noted
earlier, I
On 10/22/10 4:48 PM, David Wolfskill wrote:
On Fri, Oct 22, 2010 at 04:17:30PM -0700, David Wolfskill wrote:
On Wed, Oct 20, 2010 at 04:50:10PM -0700, Julian Elischer wrote:
...
try the 7.x machine but running the 8.x kernel.. i.e. change nothing,
but boot the new kernel.
I just started that
On 10/20/10 10:48 AM, David Wolfskill wrote:
[...]
The 8.x reference machine was created by cloning the 7.x reference
machine (the OS "drive" is a RAID 1; I broke the mirror and physically
booted the (soon-to-be) 8.x machine from a single drive from the
7.x mirror, changed the hostname& IP ad
On 8/11/10 11:56 AM, markham breitbach wrote:
On 11/08/10 11:59 AM, Chuck Swiger wrote:
Hi--
[...]
Sorry for the limited data, It's hard to know where to draw the line between
useful data
and information overload, but I'm more than happy to supply whatever other info
you might
find usef
tvtube blog wrote:
Dear All,
Now a days I getting a Problem with my 4.11 FreeBSD Router with 3 Gigabits
(bge) Broadcom Ethernet Cards, It was working fine and uses to pass more
then 200 Mbits/s Internet Traffic but now a day not passing more then
90Mbits/s. Even All cards are have Giga Connectiv
Invernizzi Fabrizio wrote:
The limitation that you see is about the max number of packets that
FreeBSD can handle - it looks like your best performance is reached at
64 byte packets?
If you are meaning in term of Packet per second, you are right. These
are the packet per second measured during
Invernizzi Fabrizio wrote:
Hi
-Original Message-
From: Stefan Lambrev [mailto:stefan.lamb...@moneybookers.com]
Sent: lunedì 3 agosto 2009 11.22
To: Invernizzi Fabrizio
Cc: freebsd-performance@freebsd.org
Subject: Re: Test on 10GBE Intel based network card
Hi,
The limitation that you
Krassimir Slavchev wrote:
Also, I am able to set HZ=10 but the thread switching time is still
~1ms.
You must be talking about the time that a thread can run before it is
pushed out by other threads? I know I've seem many x 10,000 context
switches in some cases, i.e. look at very high i
Rahul wrote:
Hi all,
I am looking to install Unix (and/or like) system for server to run
some highly computational and multi-threaded applications. My
background being pretty much all Windows, I am a novice to this field.
I have grasped some basics by reading some material on web and how-to
book
Kris Kennaway wrote:
Brett Bump wrote:
On Thu, 14 Feb 2008, Kris Kennaway wrote:
We are going to need more information about your system. What do you
mean by "peak activity"? What is running on the system when it performs
badly (check top -S, ps, gstat, vmstat -w, vmstat -i). What is your
Dag-Erling Smørgrav wrote:
Julian Elischer <[EMAIL PROTECTED]> writes:
Robert Watson <[EMAIL PROTECTED]> writes:
be a good time to try to revalidate that. Basically, the goal would
be to make the pcpu cache FIFO as much as possible as that maximizes
the chances that the newly allo
Robert Watson wrote:
be a good time to try to revalidate that. Basically, the goal would be
to make the pcpu cache FIFO as much as possible as that maximizes the
you mean FILO or LIFO right?
chances that the newly allocated object already has lines in the cache.
It's a fairly trivial twea
Alexander Motin wrote:
Julian Elischer пишет:
Alexander Motin wrote:
Hi.
While profiling netgraph operation on UP HEAD router I have found
that huge amount of time it spent on memory allocation/deallocation:
0.14 0.05 132119/545292 ip_forward [12]
0.14 0.05 133127
Alexander Motin wrote:
Hi.
While profiling netgraph operation on UP HEAD router I have found that
huge amount of time it spent on memory allocation/deallocation:
0.14 0.05 132119/545292 ip_forward [12]
0.14 0.05 133127/545292 fxp_add_rfabuf [18]
0.27 0.
Josh Carroll wrote:
is bigger better or worse?
For sysbench bigger is better (more transactions per second). For
ffmpeg, lower is better - e.g. the time to transcode the first 120
seconds of the selected video is less, so it ran faster.
don't forget to give this info when giving numbers :-)
Josh Carroll wrote:
I just ran through some of my benchmarks on a kernel build from
sources as of today, and I've noticed an improvement for the ffmpeg
workload. Here's a comparison of 4bsd, ule (BETA1) and ule (BETA3).
This is vanilla source with no patches applied:
Sorry, the ministat output
Julian Elischer wrote:
Sanket Somnath Hase wrote:
Hi Matt ,
We are graduate students at Carnegie Mellon University. We are
enrolled in
a course (Operating systems practicum http://www.cs.cmu.edu/~412/ ) which
involves hands-on experience with operating-system code as it is
developed
and
Sanket Somnath Hase wrote:
Hi Matt ,
We are graduate students at Carnegie Mellon University. We are enrolled in
a course (Operating systems practicum http://www.cs.cmu.edu/~412/ ) which
involves hands-on experience with operating-system code as it is developed
and deployed in the real world. Mu
Sven Petai wrote:
are there any patches that take the gettimeofday() calls and replace
them with something that is cheap
such as only doing every 10th one and just returning the last value ++ 1
uSec for the other ones..
a ktrace of Mysql shows a LOT of gettimeofday() calls.
On Tuesday 09 M
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