Displaying 20 results from an estimated 200 matches similar to: "Performance of madvise / msync"
2010 Sep 19
0
A logging/graphing UPS client using rrdtool and UPS::Nut
I finally got around to writing myself a NUT UPS monitoring tool. NUT's
UPS monitoring CGI tools provide a detailed instantaneous view of the
UPS's state at any moment, but provide no history. The attached tool,
upswatch, uses Kiss Gabor's UPS::Nut module and Tobi Oetiker's rrdtool
to provide a graphical history of the major UPS operating parameters via
a web browser.
2006 Aug 03
2
RHEL4 to CentOS 4
Hi ,
For reasons I will not go in to does anyone know if you can convert a RedHat RHEL4 box to CentOS 4 ? I am hoping this possible with our re installing . If it if what do I need to do to get the system to run yum instead of the RedHat updates.
Thanks
Arun
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2004 Dec 28
1
Debugging msync() failed errors
>From today's maillog:
maillog:Dec 28 09:29:40 aurora dovecot: IMAP(doug): msync() failed with index file /home/doug/Maildir/.projects.job591/dovecot.index: Invalid argument
maillog:Dec 28 09:30:21 aurora dovecot: IMAP(doug): msync() failed with index file /home/doug/Maildir/dovecot.index: Invalid argument
maillog:Dec 28 09:30:22 aurora dovecot: IMAP(doug): msync() failed with index file
2013 Mar 18
27
corruption of active mmapped files in btrfs snapshots
For quite a while, I''ve experienced oddities with snapshotted Firefox
_CACHE_00?_ files, whose checksums (and contents) would change after the
btrfs snapshot was taken, and would even change depending on how the
file was brought to memory (e.g., rsyncing it to backup storage vs
checking its md5sum before or after the rsync). This only affected
these cache files, so I didn''t give
2005 Oct 30
2
rsync when working on both sides...
Hi rsync devs and users,
I want to use rsync to synchronize home directories on two PCs. It works
fine if I start rsync after working on a host each time I leave. But
instead of operating modes "host1 -> host2" and "host2 -> host1" I would
like to have a mode "host1 <-> host2" to allow synchronizing at any time
-> Scenario:
- on host1 files A,B have
2017 Sep 18
1
Confusing lstat() performance
On 18/09/17 17:23, Ben Turner wrote:
> Do you want tuned or untuned? If tuned I'd like to try one of my tunings for metadata, but I will use yours if you want.
(Re-CC'd list)
I would be interested in both, if possible: To confirm that it's not
only my machines that exhibit this behaviour given my settings, and to
see what can be achieved with your tuned settings.
Thank you!
2011 Jun 08
2
Looking for gfs2-kmod SRPM
I'm searching for the SRPM corresponding to this installed RPM.
% yum list | grep gfs2
gfs2-kmod-debuginfo.x86_64 1.92-1.1.el5_2.2
It is missing from:
http://msync.centos.org/centos-5/5/os/SRPMS/
What I need from the SRPM are the patches. I'm working through
some issues using the source code, and the patches in the RedHat
SRPM
2005 Nov 25
28
ZFS and memcntl(..., MC_SYNC, ...)
It wouldn''t be proper to start my first post here without congratulations
and thanks to the ZFS team for such an impressive piece of work.
Anyway, on to my query. I''ve been trying out ZFS, with a particular focus in
reducing latency in a specific application. This application has a fair
amount of random writing going on in the background (which, of course, ZFS
will make
2007 Nov 06
2
index corruption
Hi people
Just switched to Dovecot yesterday, and I've already got about five
reports of users with duplicate mail in their inbox :-/. Not as bad
as lost email, mind you, but pretty annoying still.
Checking the server log, it says:
postfix/smtpd: disconnect from unknown
deliver: msync() failed with index file maildir/dovecot.index:
Input/output error
unionfs: new lower inode mtime
2011 Oct 05
3
[LLVMdev] Support for PPC 440/450
I've been working on adding support for the PPC 440/450 "embedded" cores
to the PowerPC backend. These are used on IBM's Blue Gene L and P
supercomputers, but are also used in other environments (like on the
Xilinx Virtex-5). Here is my first patch. I'm new to LLVM, and so I
apologize if this is the wrong way to do this [the online docs seem to
imply that a patch should be
2011 Oct 05
0
[LLVMdev] Support for PPC 440/450
On Oct 5, 2011, at 8:22 AM, Hal Finkel wrote:
> I've been working on adding support for the PPC 440/450 "embedded" cores
> to the PowerPC backend. These are used on IBM's Blue Gene L and P
> supercomputers, but are also used in other environments (like on the
> Xilinx Virtex-5). Here is my first patch. I'm new to LLVM, and so I
> apologize if this is the wrong
2013 Oct 03
2
[LLVMdev] question about -coverage
Hello,
I have few questions about coverage.
Is there any user-facing documentation for clang's "-coverage" flag?
The coverage instrumentation seems to happen before asan, and so if asan is
also enabled
asan will instrument accesses to @__llvm_gcov_ctr.
This is undesirable and so we'd like to skip these accesses.
Looks like GEP around @__llvm_gcov_ctr have special metadata
2013 May 10
4
CentOS 6-6.3 -> no updates and security fixes?
Hi All.
I've found:
This directory (and version of CentOS) is depreciated. For normal users,
you should use /6/ and not /6.3/ in your path. Please see this FAQ
concerning the CentOS release scheme:
http://www.centos.org/modules/smartfaq/faq.php?faqid=34
If you know what you are doing, and absolutely want to remain at the 6.3
level, go to http://vault.centos.org/ for packages.
Please keep
2012 Jan 25
1
What happened to the mirrors?
Hi all,
what happened to the mirrors? Many of them are outdated and older than
2days. They are missing the latest updates from yesterday and the day
before yesterday. According to http://mirror-status.centos.org a
whopping number of 227 mirrors are currently out of date. This is the
major part of all European mirrors. :(
Can someone please have a closer look at this?
Thanks a lot and regards
2013 Oct 04
0
[LLVMdev] question about -coverage
Another question is about the performance of coverage's at-exit actions
(dumping coverage data on disk).
I've built chromium's base_unittests with -fprofile-arcs -ftest-coverage
and the coverage's at-exit hook takes 22 seconds,
which is 44x more than I am willing to pay.
Most of the time is spent here:
#0 0x00007ffff3b034cd in msync () at ../sysdeps/unix/syscall-template.S:82
#1
2015 Aug 07
4
6.7
On 08/07/2015 01:04 PM, Johnny Hughes wrote:
> 6.7 is there most places ... since we have more than 500 external
> mirrors (right now 593) not all of them are updated. (looks like
> 4% still are not completely updated)
what about the src.rpms? it seems http://vault.centos.org/6.7/os/ and
http://vault.centos.org/6.7/cr/Source/ is empty and while
2014 Sep 10
1
Scheduling migration for wiki.centos.org
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi,
As I received positive feedback from testers (thank you all !) on the
wikitesting.centos.org moin instance, I think we can say that we'll
migrate the real wiki.centos.org very soon ...
I'm actually moving some services around (pdns/msync roles) to free a
machine that will be able to host the moin/wiki role.
Depending on the available
2009 Feb 04
2
can't make 3.3.0 on Solaris 10
I downloaded 3.3.0 and tried compiling on Solaris 10 and got pretty
far into the make before this message:
Linking bin/smbd
./bin/libtdb.so: undefined reference to `write@SUNW_0.9'
./bin/libwbclient.so: undefined reference to `sleep@SUNW_0.7'
./bin/libtdb.so: undefined reference to `pread64@SUNW_1.4'
./bin/libtdb.so: undefined reference to `fcntl@SUNW_0.9'
./bin/libtalloc.so:
2015 Apr 23
2
Samba 4 slow write
Hi Jones,
many thanks again four your help and your time.
Thanks for the patch too - I'll check it up.
On my Ubuntu, there is a Samba 4.1.6. I'll install the samba
source package, and will try to apply the patch, then - I hope -
the package will be compiled as well.
I'll notify to you about the result. (First, I need to upgrade
that server.)
Thanks again,
Ervin
On Thu, Apr
2006 May 02
1
madvise() errors
(I think this has been mentioned before.)
Do these hurt?:
May 2 13:41:30 sysname dovecot: POP3(xxxx): madvise() failed with
file /users/xx/xxxx/Maildir/dovecot.index.log: Operation not
supported
I think not, since I've been seeing them forever. But they do muddy the
logs. This is on an old BSD/OS server, where the man page for madvise
ends with:
BUGS
This call is not yet