search for: fadvise64

...laris... > Attached is a patch to unstable that stops save/restore/dump from > hosing > Dom0 when dealing with large domains - I''m actually resubmitting the > dump patch I previously submitted in addition as it hasn''t been > incorporated yet; this is based on using fadvise64(DONTNEED) to throw > the page cache away once it has been written to disk -- with this in > place, memory usage does go up somewhat but then immediately drops > again > when the action is done and this change, in conjunction with setting > the > vm.dirty_ratio sysctl parameter see...

...luster developer to get their name in the Linux kernel :-) Feature additions like this have been done before by us, and we should continue where we can. It is a relatively easy entry for contributing to the Linux kernel. > [1] https://linux.die.net/man/2/fadvise As well as local man-pages for fadvise64/posix_fadvise. Showing that we have support for this, suggests that the filesystem becomes more mature and gains advanced features. This should impress users and might open up more interest for certain (HPC?) use-cases. Thanks, Niels > > regards, > Raghavendra > ___________________...

...y involve adding a new fop to struct file_operations that is common across the entire VFS and likely won't fly with the kernel folks. I could be wrong in understanding all of this. :-) Regards, Ravi > >> [1] https://linux.die.net/man/2/fadvise > As well as local man-pages for fadvise64/posix_fadvise. > > Showing that we have support for this, suggests that the filesystem > becomes more mature and gains advanced features. This should impress > users and might open up more interest for certain (HPC?) use-cases. > > Thanks, > Niels > > >> regards, &g...

Hi all, In a conversation between me, Milind and Csaba, Milind pointed out fadvise(2) [1] and its potential benefits to Glusterfs' caching translators like read-ahead etc. After discussing about it, we agreed that our performance translators can leverage the hints to provide better performance. Now the question is how commonly applications actually provide hints? Is it something that is used

https://bugzilla.samba.org/show_bug.cgi?id=9560 Summary: drop-cache option Product: rsync Version: 3.0.9 Platform: All OS/Version: All Status: NEW Severity: normal Priority: P5 Component: core AssignedTo: wayned at samba.org ReportedBy: colundrum at gmail.com QAContact: rsync-qa at

...pen("/lib64/libnss_winbind.so.2", O_RDONLY) = 5 read(5, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\33\0"..., 832) = 832 fstat(5, {st_mode=S_IFREG|0755, st_size=35642, ...}) = 0 mmap(NULL, 2145744, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 5, 0) = 0x7f748e928000 fadvise64(5, 0, 2145744, POSIX_FADV_WILLNEED) = 0 mprotect(0x7f748e92d000, 2097152, PROT_NONE) = 0 mmap(0x7f748eb2d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED| MAP_DENYWRITE, 5, 0x5000) = 0x7f748eb2d000 mmap(0x7f748eb2f000, 19920, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED| MAP_ANONYMOUS, -1, 0)...

...t is not impossible to convince the Linux VFS developers, but it would not be as trivial as adding it to FUSE only (but that requires the VFS infrastructure to be there). Niels > Regards, > Ravi > > > [1] https://linux.die.net/man/2/fadvise > > As well as local man-pages for fadvise64/posix_fadvise. > > > > Showing that we have support for this, suggests that the filesystem > > becomes more mature and gains advanced features. This should impress > > users and might open up more interest for certain (HPC?) use-cases. > > > > Thanks, > >...

...pause SYSCALL FOUND: swapoff SYSCALL FOUND: ftruncate64 SYSCALL FOUND: mmap2 SYSCALL FOUND: ioperm SYSCALL FOUND: ioprio_get SYSCALL FOUND: setpriority SYSCALL FOUND: rt_sigqueueinfo SYSCALL FOUND: nanosleep SYSCALL FOUND: fanotify_init SYSCALL FOUND: lremovexattr SYSCALL FOUND: read SYSCALL FOUND: fadvise64_64 SYSCALL FOUND: sched_setparam SYSCALL FOUND: swapon SYSCALL FOUND: io_getevents SYSCALL FOUND: olduname SYSCALL FOUND: link SYSCALL FOUND: recv SYSCALL FOUND: timer_gettime SYSCALL FOUND: sendmmsg SYSCALL FOUND: ulimit SYSCALL FOUND: truncate64 SYSCALL FOUND: timerfd_create SYSCALL FOUND: gettid...

On Tue, Aug 20, 2013 at 07:44:39AM +0200, leroy christophe wrote: > > > Find attached two patches I have in order to build klibc 2.0.2 > against kernel 3.8.13 > We had to introduce those patches when going from kernel 3.6 to kernel 3.7 > Hope it helps. > those patches are wrong and again very brittle. just use the way it is described in `make help': A) cd ~/src/linux