similar to: a piece of code in dtrace pseudo device

Does anyone has any ideas about this problem? 2008/1/15, ?? TaoJie <eulertao at gmail.com>: > > Hi all: > > I''m working on revealing system performance now. > My testing program is an infinite loop. Inside the loop, it will do some > mathematical opertaions and call function callee(), then go to the next > loop. > I install a alarm(30) in the program. It

Dear all, please could you advise me on the following : I've written a R script that reads 3 arguments from the command line, i.e. : " args <- commandArgs(TRUE) TUMOR <- args[1] GERMLINE <- args[2] CHR <- args[3] ". when I submit the R script to a PBS HPC scheduler, I do the following (below), but ... I am getting an error message. (I am not posting the error message,

A lot of people in the security community, myself included, are interested in memory forensics these days. Virtualization is a natural fit with memory forensics because it allows one to get access to a guest's memory without having to introduce any extra software into the guest or otherwise interfere with it. Incident responders are particularly interested in getting memory dumps from

On Tue, Jun 25, 2013 at 7:07 PM, Daniel P. Berrange <berrange@redhat.com>wrote: > On Tue, Jun 25, 2013 at 07:02:40PM +0200, Roland Giesler wrote: > > System: > > $ cat /etc/issue > > Ubuntu 12.10 \n \l > > > > $ uname -a > > Linux Matt-HP 3.5.0-34-generic #55-Ubuntu SMP Thu Jun 6 20:20:19 UTC 2013 > > i686 i686 i686 GNU/Linux > > > >

System: $ cat /etc/issue Ubuntu 12.10 \n \l $ uname -a Linux Matt-HP 3.5.0-34-generic #55-Ubuntu SMP Thu Jun 6 20:20:19 UTC 2013 i686 i686 i686 GNU/Linux I have a converted VMWare virtual machine which I converted by using: $ vmware2libvirt -f ./WinXPPro.vmx > WinXPPro.xml $ virsh -c qemu:///system define WinXPPro.xml After various efforts to start the machine, I changed some of the

This sounds like an operating system specific question, in that "submit the R script to a PBS HPC scheduler" would be the kind of action that would run R with very different environment variables and possibly different access credentials than your usual interactive terminal. A thorough reading of the "Installation and Administration Guide" and some study of your HPC

I create a new thread, because the issue is not really the same, but i copy here the thread that made me jump into the list. My issue is not really that it waits before starting copying, but a general performance issue, specially when there are multiple rsync running at the same time. Here is my situation : I have multiple clients (around 20) with users and i want to rsync their home dirs with

Hi, The problem is most likely, you need to call a R CMD BATCH with your arguments and the R-script inside of a shell script that you submit to your qsub. Unfortunately we don't use qsub anymore so can't test it, but it should be as follows: R-script eg. test.R: > ##First read in the arguments listed at the command line > args=(commandArgs(TRUE)) > > ##args is now a list of

I''ve been testing ZFS since it came out on b27 and this week I BFUed to b30. I''ve seen two problems, one I''ll call minor and the other major. The hardware is a Dell PowerEdge 2600 with 2 3.2GHz Xeons, 2GB memory and a perc3 controller. I have created a filesystem for over 1000 users on it and take hourly snapshots, which destroy the one from 24 hours ago, except the

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Refinement of the schema.xml (below) THis however does not solve the "no results" and "Out of range" errors in Dovecot and Solr <?xml version="1.0" encoding="UTF-8"?> <schema name="dovecot" version="2.0"> <uniqueKey>id</uniqueKey> <fieldType name="booleans" class="solr.BoolField"

> On Sep 23, 2016, at 1:01 PM, Sean Silva via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > > > On Tue, Sep 20, 2016 at 10:32 AM, Krzysztof Parzyszek via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote: > I have posted a patch that switches the API to one that supports this (yet non-existent functionality) earlier: >

I was wondering if a fork failure with EAGAIN will manifest as an allocation failure in vmem, if so how to see that and if there is a specifc cache that can be tweaked. At present the only cache that is reporting any failure is kmem_lp 1002438656 1002438656 239 1858 thanks -- This message posted from opensolaris.org

Author: peterte Repository: /hg/zfs-crypto/gate Revision: b681de1a640aeda1c2465325a301eec62c555cef Log message: 6324745 vmem memory leak in the procfs PAGEDATA subsystem. 6329403 hrm_init() cannot ever return -1 but in various places we check for that. 6330765 procfs pagedata can panic machine. Files: update: usr/src/uts/common/vm/hat_refmod.c

We have 10 SuperMicro PDSMi+ 5015M-MTs that are panic'ing every few days. This started shortly after upgrade from 6.2-RELEASE to 6.3-RELEASE with freebsd-update. Other than switching to a debugging kernel, a little sysctl tuning, and patching with freebsd-update, they are stock. The debugging kernel was built from source that is also being patched with freebsd-update. These systems are

In the code, it says #define SOLR_HEADER_MAX_SIZE (1024*1024) and line 620 if (!ctx->truncate_header && str_len(ctx->cur_value) >= SOLR_HEADER_MAX_SIZE) { /* a large header */ so this is a 1Mo header. This is of course completely wrong. Maybe this is not the root cause of the errors of fts_solr, but maybe this will help On 2019-01-02 18:00, Joan Moreau via dovecot

Ok, so i did some tests. find /path -type f -ls > /dev/null First on my local SSD disk (1.9 millions files) : 1 find : real 2m16.743s user 0m7.607s sys 0m45.952s 10 concurrent finds (approx same results for each) : real 4m48.629s user 0m11.013s sys 2m0.288s Almost double time is somehow logic. Now same test on my server on the iSCSI disk (when there is no other activity) (2.8 millions

ZFS works really stable on FreeBSD, but I''m biggest problem is how to control ZFS memory usage. I''ve no idea how to leash that beast. FreeBSD has a backpresure mechanism. I can register my function so it will be called when there are memory problems, which I do. I using it for ARC layer. Even with this in place under heavy load the kernel panics, because memory with KM_SLEEP

Hi, I am adding DTrace probes within NFS v3 client. In my current implementation, I use some tsd_*() functions and kmem_zalloc() function. These functions might be heavy and affect the performance. I want to call this function only when DTrace is running or the DTrace probes are enable. So is there a way to check DTrace is running or DTrace probe is enabled? Regards, Danhua

Background: I administer a cluster of RedHat EWS 3U4 Linux workstations at a university. I built R 2.1.0 from source: ./configure \ --prefix=/sscc/opt/R-2.1.0 \ --with-blas=no \ 2>&1 \ | tee NUInstall.configure R is now configured for i686-pc-linux-gnu Source directory: . Installation directory: /sscc/opt/R-2.1.0 C compiler: