johan...@sun.com wrote:
On Thu, Dec 17, 2009 at 05:07:45PM -0800, Jin Yao wrote:
We decide to divide numatop development into 2 phases.
At phase 1, numatop is designed as a memory locality characterizing tool.
It provides a easy and friendly way for observing performance data from
hardware
Jim Fiori wrote:
Lock contention Matt. See what locks are hot:
# lockstat -o lockstat.out -D20 sleep 10
Matt V. wrote:
OK, I tried the DTrace script "hotkernel" et the result is:
[...]
ce`ce_intr 1245 0.4%
unix`page_lookup_nowait
camps support wrote:
Every so often on multiple servers I have lost connection then when I connect
to the serial port it is at the ok prompt. No dumps or anything to speak of.
Has anyone experienced this issue with the T1000?
I would keep a serial connection to the system open for a whil
Julie Hartman wrote:
I have a T5240 with 2 CPUs / 8 cores per CPU / 8 threads per core. How do I
turn off threading?
Are you saying that you only want one CPU per core online? Each core
(with 8 threads) is actually comprised of two integer instruction
pipelines, and one floating point pipe
Krishnendu Sadhukhan wrote:
The LatencyTOP team is seeking valuable feedback on the tool, and possible any
user requirements that may not have been implemented yet, in order to make this
tool fulfill the needs of a wide range of user base. All information about the
tool is available on the Lat
Qiang Liu wrote:
Gurus,
Not sure if this sit is the right place to post my question. Anyway my goal is to get better performance for my IO board.
On x64 platform (AMD x4600 for example) with snv_109 installed, the apic_id is written by Solaris to MSIX table on my HBA card, I wonder if there is
Eric Saxe wrote:
Also, in the past I've acted as de facto facilitator for this
community...but we've never had a vote around that (at least not one
that I remember).
Are you interested Krister? If so, I nominate you. :)
Krister has accepted my nomination for community facilitator.
johan...@sun.com wrote:
Folks,
The voting for core contributor grants has been open for a week. At
this point we've received enough votes to proceed.
Here are the renewals:
akolb Core Contributor+1: esaxe, jjc, johansen, mpogue
barts Core Contributor+1: esa
I'd like to put forth a contributer grant nomination for Chad Mynhier,
for his recent contributions in the area of performance observability,
including contributing fixes for:
PSARC 2007/598 ptime(1) Improvements
6234106 ptime should report microseconds or nanoseconds instead of just
millisecon
johan...@sun.com wrote:
> I'm going to begin this process by voting in favor of renewing akolb,
> barts, esaxe, johansen, jjc, mpogue, and dp. If andrei or rmc are still
> interested in participating, I would support renewing their grants. I
> simply haven't seen any traffic from them on our list
czezz wrote:
> Let's say I have Sun Fire V490 with 4 proccessors and 64 GB of RAM.
>
> # psrinfo -vp
> The physical processor has 2 virtual processors (0 16)
> UltraSPARC-IV+ (portid 0 impl 0x19 ver 0x24 clock 1800 MHz)
> The physical processor has 2 virtual processors (1 17)
> UltraSPARC-IV+ (
ources of latency in their code. LatencyTOP for OpenSolaris is under
> work and we'd like to host it's source in a repo under the performance
> community.
>
> Initial participants: Rafael Vanoni (rafaelv), Aubrey Li (aubrey), Eric
> Saxe (esaxe), Ashok Raj (ashokraj).
>
Rafael Vanoni wrote:
> I'd like to request space under the performance community site to host
> content for LatencyTOP. This is a tool developed by Intel to help
> developers identify sources of latency in their code. LatencyTOP for
> OpenSolaris is under work and we'd like to host it's source i
Hi Raymond,
Raymond Tay Boon Leong wrote:
> +1 for me as well
>
This project is already underway...
http://www.opensolaris.org/os/project/amd/
-Eric
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I believe we have a quorum in the performance community for sponsoring
these projects.
Per the "Project instantiation process", I'll forward Jonathan's
proposals on to the "project-setup" mail alias so that the instantiation
process may proceed...
Thanks,
-Eric
__
+1 also...
-Eric
Jonathan Chew wrote:
> I would like to get sponsorship from the OpenSolaris performance
> community to host a NUMA project.
>
> The "Memory Placement Optimization" feature in Solaris has been around
> since Solaris 9 and has had web pages in the OpenSolaris performance
> commu
+1.
I think this project (and the NUMA one) will be good vehicles for
opening the development and discussion around the areas outlined.
Thanks,
-Eric
Jonathan Chew wrote:
> I would like to get sponsorship from the OpenSolaris performance
> community to host a CMT project which will focus on ob
Hi Hans,
(I'm copying perf-discuss, since I think this discussion will probably
be of general interest, and the wider forum can probably provide you
with feedback about expected use cases).
Hans Rosenfeld wrote:
> Hi,
>
> I would like to lift the major limitation of the IBS provider, its
> inab
Zeljko Vrba wrote:
> On Thu, Apr 10, 2008 at 01:02:34PM -0700, Alexander Kolbasov wrote:
>
>> It may be useful to observe prstat -mL which will report micro-state
>> accounting data for each thread.
>>
>>
> prstat -mL takes a *lot* of time with 16k threads. Nevertheless, I have some
> fu
Hi Krishna,
Krishna Yenduri wrote:
> Hi All,
>
> I have a user level benchmark that does
> for (i = 0; i < nthreads; i++)
> (void) thr_create(NULL, 0, testaes, (void *)0,
> THR_NEW_LWP, &tid);
>
> I found that running this benchmark with nthreads == ncpus
> sc
Rafael Vanoni wrote:
> I've read a good deal of code involving lpl's but I'd like to clear a
> couple of ideas around it. If anyone could comment on these, I'd
> appreciate it.
>
> (a) lpl's are used to determine the load average of lgroups, which is
> used by the dispatcher to load balance threads
written several books about it. :)
Thanks,
-Eric
Brandorr wrote:
> I am not a contributor to perf, but what about:
>
> Adrian
> Jim Mauro
> Richard McDougal
>
> for starters.
>
> -Brian
>
> P.S. - Please forgive spelling.
>
> On Tue, Feb 26, 2008 at 6:46
Bill Holler wrote:
> I'd like to nominate Robert Kasten for a contributor grant in our community.
>
+1
-Eric
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Sherry Moore wrote:
> I'd like to nominate Ashok Raj for a contributor grant in our community.
>
+1
-Eric
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I'd like to nominate Sherry Moore for a core contributer grant in our
community.
Sherry is the tech lead for the community sponsored "Enable/Enhance
Solaris support for Intel Platform" project, and is a Senior Staff
Engineer in the Solaris Kernel group. Her contributions to Solaris /
OpenSolar
I'd like to nominate Aubrey Li for a contributer grant in our community.
Aubrey has made (and continues to make) tremendous contributions to the
perf community sponsored OpenSolaris Tesla project though his code and
design contributions to the OpenSolaris PowerTop port, deep C-state
support, an
Greetings,
You may have noticed that other communities have been (and are) defining
roles and grants as outlined in section 3.3 of the OpenSolaris
constitution, and the time has arrived for us (the performance
community) to do the same. This URL:
http://www.opensolaris.org/os/community/perform
Eugene Margulis wrote:
> I often get "/0" in the PROCESS/LWPID column as part of prstat -mL output.
> What does it mean? I usually get a lot of those when I just start prstat -mL
> in the first screen, but I do get this after that as well. Does this mean
> that the particular the process 20925
It's likely that kernel service threads (which show up as "sched") are
preempting postgresql...at which point the runnable postgresql goes back
on the run queue to wait, at which point another idle CPU steals it so
that it can run immediately. With this happening often things can tend
to migrat
CedBer wrote:
> Thank's for responses...
>
> So, you're saying that I must divide the top result (for a process cpu usage)
> by 8 rather than 4 (top and prstat will have the same value).
Your system has 8 logical processors (2 per socket), so yes.
> And the difference between prstat (or top) su
CedBer wrote:
> If I divide by 8 rather than 4, I have B=1/2*C ! (where B is the sum of
> processes %CPU of top an C the usr+sys vmstat value)
>
Are you observing that same discrepancy between prstat and vmstat?
vmstat derives it's statistics from the cpu kstats...whereas prstat
looks at the
CedBer wrote:
> Hi,
>
> I've a problem on Solaris 8 with CPU measure !
>
> If i make a prstat or a ps (/usr/bin & /usr/ucb), I have the following result
> :
> - 4.4% : vxconfigd
> And if I make a top I have :
> - 47.49% : vxconfigd
> I should divide top result by the number of processors (Here 4 :
Ostrovsky, Boris wrote:
> I would like to propose creation of a new project titled "Solaris
> Enhancements for AMD-based Platforms".
>
I believe you have endorsement from the performance community. Any
objections?
-Eric
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Ostrovsky, Boris wrote:
> I would like to propose creation of a new project titled "Solaris
> Enhancements for AMD-based Platforms".
>
> The project will address various features that are specific to platforms
> based on AMD processors, such as
> - IOMMU support
> - NUMA topology, parti
Hi Allan,
FSS won't work correctly if you have a mix of processes/threads from
different scheduling classes (TS/IA/FX) in the same processor set, since
those classes use the same priority range (0-59). Might that be
happening here?
Thanks,
-Eric
Allan wrote:
> Hi,
>
> I am setting up the FSS
Alexander Kolbasov wrote:
>> I'd like to modify my initial proposal and suggest to create a "CPU
>> Observability" project with the goal of providing good abstraction and
>> tools for CPU-related observability.
>>
>> As for the exact mechanism being used - the filesystem, programmatic
>> API, ksta
>> On 7/9/07, Alexander Kolbasov <[EMAIL PROTECTED]> wrote:
>>
>>> Hello,
>>>
>>> I would like to propose a new "CPUfs" project aimed at providing extended
>>> observability for the CPUs in the system and their sharing relationships.
>>> The
>>> main objective is to provide stable infrastruct
Thomas Wagner wrote:
Eric Saxe wrote:
Ian Murdock wrote:
Desktop responsiveness could use some work. There was a lot of
work done in the Linux kernel a few years ago to improve this on
Linux, and it made a world of difference there.. I computed an
md5sum last night on an ISO image
I'd like the ask the OpenSolaris performance community for sponsorship
of Project Tesla.
http://www.opensolaris.org/os/project/tesla
The Tesla project seeks to provide OpenSolaris with a platform
independent power management policy architecture,
bringing power awareness to various kernel sub
Hi Roland,
Roland Mainz wrote:
My idea was to provide a simple, "preconfigured" tool to do this. Right
now we have more or less the following levels of "interactivity" in the
scheduler classes:
1. "RT" (realtime)
2. "IA" (interactive processes (more or less a subclass of "TS" where an
active GUI
Jeffrey Collyer wrote:
5 identical V440s, Solaris 10, storage on a Netapp via NFS, providing access to
a mailstore (so 80% read, 20% write).
During the day, randomly a machine will start to climb its load from the
baseline of 2-3 up to 50-60. Under heavy loading, I've seen it go up to 300.
Hi Rafael,
Rafael Vanoni wrote:
Hi everyone,
I was wondering if someone could help me with a doubt I ran into while
reading Solaris Internals.
On p802, chapter 16.4, last paragraph, it says that real-time threads
don't benefit from scheduling affinity because the implementation is
POSIX confo
I'd like to request endorsement from the performance community for the
"Enable/enhance Solaris support for Intel Project".
http://www.opensolaris.org/os/project/intel-platform/
Intel specific performance enhancement is a core area of focus for the
project.
http://www.opensolaris.org/os/project
Shreyas wrote:
Hello all,
I face a similar problem of un-utilized CPUs.
I have a Intel Xeon 2.66GHz, with 8 CPU cores. The machine has Opensolaris
build 48. I am using a 10 Gig card, whose driver I have written, to run iperf
at full blast.
I see that utilization of one of the CPUs is 80-100%
Roland Mainz wrote:
Eric Saxe wrote:
Roland Mainz wrote:
Is there any special handling of process groups to make sure that
processes (and their LWPs) are kept together ?
Think about an (imaginary (and simplified)) machine with 4 strands per
core, 4 cores per socket, 4 sockets per
Hi Roland,
Roland Mainz wrote:
Hi!
Is there any special handling of process groups to make sure that
processes (and their LWPs) are kept together ?
Think about an (imaginary (and simplified)) machine with 4 strands per
core, 4 cores per socket, 4 sockets per board and 4 boards per cabine
Hi Jim,
Jim M wrote:
Hello.
One of the developers I support is having a performance challenge. He is writing a simple message processing application that receives a small message on a socket and writes a response to that socket, then waits for the next message. The application runs one thread
Hi Brad,
Brad Lewis wrote:
I am looking to either open a new OpenSolaris community or join an existing one
for High Performance Computing Developers. I am interested in tools and
libraries to improve the performance of large scientific and engineering
applications; especially parallel impleme
> This might sound dumb, but are we sure that processes are the resource
> which is temporarily unavailable?
I think what you are saying, Dan, is that "this might be so obvious that
it has escaped you", and you very well might be right. :)
-Eric
Eric Saxe
Solaris Kernel Developm
On 8/8/05, Ben Cooper <[EMAIL PROTECTED]> wrote:
> I thought it would be interesting to get these
> running on Mac OS X/
> PPC since there's no Darwin makefile included in the
> release.
Hey, this is really great.
> So the tests compiled and ran, but as soon as I got
> to the fork I got
> resourc
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