Displaying 20 results from an estimated 39 matches for "0.000006".
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0.000000
2005 Nov 28
20
open/stat64 syscalls run faster on Xen VM than standard Linux
Dear all,
When I debugged the execution performance of an application using strace, I found there are some
system calls like open and stat64 which run faster on XenLinux than the standard Linux. The
following is the output of running "strace -c /bin/sh -c /bin/echo foo" on both systems. An open
call runs averagely 109 usec on standard Linux but only 41 usecs on XenLinux. An stat64
2018 Jan 31
2
swiotlb buffer is full
Hello,
I've noticed firefox got randomly stuck, and as sometimes that leads to a
complete system lock-up, I've checked dmesg and got this:
[Jan29 10:49] nouveau 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes)
[ +0.000033] swiotlb: coherent allocation failed for device 0000:01:00.0 size=2097152
[ +0.000004] CPU: 6 PID: 1023 Comm: Xorg Not tainted 4.15.0-rc8 #1
[ +0.000003]
2018 Nov 26
2
Source locations missing when using xray-account
Hi all,
I am trying to add XRay support to the IR produced by GHC. Getting the
basics working is not too complicated after adding the right function
attribute but any analysis shows the function names but not the
locations of the functions.
In particular, I run a program which has been instrumented as follows:
XRAY_OPTIONS="patch_premain=true xray_mode=xray-basic verbosity=1" ./llvm
2013 Feb 12
1
Can't get working nsswitch, specifically "wbinfo -u"
Hi,
my environment: Win2003 AD + Samba4 as second RW DC on debian wheeze.
Samba compiled from source: samba --version
Version 4.1.0pre1-GIT-c932b13
Installed Samba4 according these:
https://wiki.samba.org/index.php/Main_Page
https://wiki.samba.org/index.php/Samba4/HOWTO/Join_a_domain_as_a_DC
https://wiki.samba.org/index.php/Samba4/Winbind
Everything went good according tutorial, until I try get
2018 Feb 01
1
swiotlb buffer is full
On Wed, Jan 31, 2018 at 9:20 PM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
> Yeah, a lot of people were getting that, as a result of some drm/ttm
> hugepage usage.
>
> Christian, did a fix ever end up going out? If so, what kernel was it
> included in?
https://lkml.org/lkml/2018/1/16/106
Alex
>
> -ilia
>
> On Wed, Jan 31, 2018 at 11:05 AM, Ricardo Nabinger
2018 Dec 03
2
Source locations missing when using xray-account
> On 3 Dec 2018, at 23:01, Matthew Pickering via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> Is anyone able to help me with this or suggest where I might be able
> to get help?
You’ve asked the right place, apologies for the delay I’m supposed to be answering these questions.
>
> Matt
> On Mon, Nov 26, 2018 at 3:02 PM Matthew Pickering
> <matthewtpickering
2011 Jun 12
2
NLS fit for exponential distribution
Hello there,
I am trying to fit an exponential fit using Least squares to some data.
#data
x <- c(1 ,10, 20, 30, 40, 50, 60, 70, 80, 90, 100)
y <- c(0.033823, 0.014779, 0.004698, 0.001584, -0.002017, -0.003436,
-0.000006, -0.004626, -0.004626, -0.004626, -0.004626)
sub <- data.frame(x,y)
#If model is y = a*exp(-x) + b then
fit <- nls(y ~ a*exp(-x) + b, data = sub, start
2008 Apr 24
1
select() timeout on winbindd_privileged pipe
I have an issue where winbind will occasionally pause for 30 seconds.
# strace -T -t ls -l /share
16:52:20 read(4, "/var/lib/samba/winbindd_privileg"..., 35) = 35
<0.000009>
16:52:20 lstat("/var/lib/samba/winbindd_privileged",
{st_mode=S_IFDIR|0750, st_size=72, ...}) = 0 <0.000011>
16:52:20 lstat("/var/lib/samba/winbindd_privileged/pipe",
2018 Dec 06
2
Source locations missing when using xray-account
Hi David,
Sorry for taking a few days to reply. It's not easy for you to compile
a Haskell file to see the problem as the debug information is still
WIP. Below I prove the IR for a simple hello world program which you
can feed into llc.
https://gist.github.com/05296933e37e87533a51d493b46aa48d
The `out.ir` file can be passed straight to `llc`.
Can you see anything obviously wrong?
Matt
2008 Apr 19
0
Annoying Winbind Pause While Looking Up Permissions
Our linux SLES10 fileserver is running Samba (3.0.28) and is a domain
member in a Win2003 AD. Everything has been working fine for several
months with the exception of an annoying pause that occurs while
browsing shares. The pause will last 30 seconds and occurs roughly once
every 5-10 minutes. The pause is universal, meaning, that all Windows
clients trying to browse or access files will see this
2018 Feb 01
0
swiotlb buffer is full
Yeah, a lot of people were getting that, as a result of some drm/ttm
hugepage usage.
Christian, did a fix ever end up going out? If so, what kernel was it
included in?
-ilia
On Wed, Jan 31, 2018 at 11:05 AM, Ricardo Nabinger Sanchez
<rnsanchez at gmail.com> wrote:
> Hello,
>
> I've noticed firefox got randomly stuck, and as sometimes that leads to a
> complete system
2007 Dec 02
3
creation date and OSX
Hi,
I've been using rsync (OSX Tiger now Leopard) to backup my home
folder daily using -a -H -A -X link-dest=dir to make incremental
backups. There was a problem though since many files especially
images, movies etc would be recopied each time instead of creating
hard links. I have been testing the pre5 release and found that it
seems to make hard links correctly for all files. I
2007 Jun 03
1
Dovecot waking every 50ms when doing nothing
Hi,
My laptop runs a local IMAP server so that I'm immune from breaking my
mail client, and when playing around with powertop I discovered that
Dovecot (in particular imap-login) wakes up every 1000ms and then every
50ms even when no clients are connected. A bit of stracing shows this:
gettimeofday({1180875699, 667917}, NULL) = 0 <0.000010>
poll([{fd=7,
2012 Jan 19
0
Global sensitivity indices using sensitivity package: sobol, sobol2002
Dear R users,
I have been trying to estimate global sensitivity indices such as the sobol
1st and 2nd order indices. I managed to obtain the PRCC.
The example presented in the sensitivity package on sobol2002 seems to work
well for linear models: for example: calculate y for given x values.
However, when trying to apply this technique to dynamic models (SIR type),
the error messages just keep
2006 Mar 22
1
Double complex with gcc and Intel v9 Fortran (PR#8699)
Full_Name: Christian Marquardt
Version: 2.2.1
OS: Linux
Submission from: (NULL) (84.167.229.240)
Hello,
I believe this is a bug in the configuration / installation:
When configuring R-2.2.1 using the Intel v9 Fortran compiler as default Fortran
compiler and g++ as C++ compiler on a Suse 9.3 Linux, the configuration script
finds that the C and Fortran idea of double comples disagree.
I have
2015 Apr 22
3
Samba 4 slow write
Hi Louis,
On Wed, Apr 22, 2015 at 01:15:21PM +0200, L.P.H. van Belle wrote:
> Or..
> get the sources and recompile agains 14.04
>
> use the following commands.
> enable the deb-src in /etc/apt/sources.list
> and run :
>
> apt-get build-dep sernet-samba
> apt-get source sernet-samba -b
>
> you wil end up with .deb files ;-)
yep, thanks - I'll check it
2008 Jun 27
1
Performance of madvise / msync
Hi,
I'm using py-rrdtool 0.2.1 with rrdtool 1.3.0 under 7.0-STABLE, and
there's a couple of things about this new version of rrdtool that
hurt performance under FreeBSD, but apparently help on whatever they
tested on.
For every update, the database file is opened, mapped into memory,
madvise() is called, contents are modified, msync() is called, and
the file is unmapped and closed:
2023 Jun 13
1
Upssched 100% CPU after updating Debian 12
Thanks for the interesting puzzle to crunch!
Looking at these few bread-crumbs, I wager an educated guess that this
loops in `sendcmd()` (where CLI child processes talk to a daemonized copy
which tracks the timers for events), around here:
https://github.com/networkupstools/nut/blob/v2.8.0/clients/upssched.c#L583-L626
for the daemon and here for the child:
2023 Jun 13
1
Upssched 100% CPU after updating Debian 12
Thanks for the interesting puzzle to crunch!
Looking at these few bread-crumbs, I wager an educated guess that this
loops in `sendcmd()` (where CLI child processes talk to a daemonized copy
which tracks the timers for events), around here:
https://github.com/networkupstools/nut/blob/v2.8.0/clients/upssched.c#L583-L626
for the daemon and here for the child:
2011 May 26
2
likelihood ratio test
Dear R-help,
Can anybody tell me which R package has Lo-Mendell Rubin LR test and Bootstrap
LR test to compare the model fit between k class and k+1 class model for Latent
class analysis?
Thanks in advance,
warn regards,Ms.Karunambigai M
PhD Scholar
Dept. of Biostatistics
NIMHANS
Bangalore
India
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