similar to: Performance of madvise / msync

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 -------------- next part -------------- An HTML attachment was scrubbed... URL:
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