Displaying 20 results from an estimated 3000 matches similar to: "searching for ext3 defrag/file move program"
2006 Oct 13
1
e2defrag - Unable to allocate buffer for inode priorities
Hi, first of all, apologies if this isn't the right mailing list but it was the best I could find. If you know a better mailing list, please tell me.
Today I tried to defrag one of my filesystems. It's a 3.5T large filesystem that has 6 software-raids in the bottom and then merged together using lvm. I was running ext3 but removed the journal flag with
thor:~# tune2fs -O ^has_journal
2006 Dec 13
2
Ext2/3 fs and defragmentationn
Hi all,
Fewer days ago a CentOS box server suffered a manual and unexpected
reset (too large to explain: there are silly people in everywhere).
The result was the system did not mount de root (/) partition and the
boot process was stopped. I repair it easily: boot from LiveCD (Knoppix
in my case), umount root partition and pass the e2fsck utility.
Because of that I've used several fs tools
2023 Feb 20
1
[PATCH v2] ocfs2: fix non-auto defrag path not working issue
This fixes three issues on move extents ioctl without auto defrag:
a) In ocfs2_find_victim_alloc_group(), we have to convert bits to block
first in case of global bitmap.
b) In ocfs2_probe_alloc_group(), when finding enough bits in block group
bitmap, we have to back off move_len to start pos as well, otherwise it
may corrupt filesystem.
c) In ocfs2_ioctl_move_extents(), set me_threshold both for
2010 Sep 09
37
resilver = defrag?
A) Resilver = Defrag. True/false?
B) If I buy larger drives and resilver, does defrag happen?
C) Does zfs send zfs receive mean it will defrag?
--
This message posted from opensolaris.org
2023 Feb 17
1
[PATCH] ocfs2: fix non-auto defrag path not working issue
This commit fixes three issues on non-auto defrag path (defragfs.ocfs2
doesn't set OCFS2_MOVE_EXT_FL_AUTO_DEFRAG on range.me_flags):
- For ocfs2_find_victim_alloc_group(), old code forgot enlarge bitmap
range for global_bitmap case. Old code could generate negative
vict_bit.
- For ocfs2_probe_alloc_group(), old code forgot back off move_len when
finding enough bitmap space. Old code has
2012 Jan 07
14
zfs defragmentation via resilvering?
Hello all,
I understand that relatively high fragmentation is inherent
to ZFS due to its COW and possible intermixing of metadata
and data blocks (of which metadata path blocks are likely
to expire and get freed relatively quickly).
I believe it was sometimes implied on this list that such
fragmentation for "static" data can be currently combatted
only by zfs send-ing existing
2006 Oct 13
1
FW: e2defrag - Unable to allocate buffer for inode priorities
I have made some more research and found out the following ..
thor:~# df -i
Filesystem Inodes IUsed IFree IUse% Mounted on
-[cut]-
/dev/mapper/vgraid-data
475987968 227652 475760316 1% /data
thor:~# strace e2defrag -r /dev/vgraid/data
-[cut]-
mmap2(NULL, 1903955968, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
= 0x46512000
(delay 15 seconds
2023 Feb 20
1
[PATCH v2] ocfs2: fix non-auto defrag path not working issue
On 2/20/23 1:05 PM, Heming Zhao wrote:
> This fixes three issues on move extents ioctl without auto defrag:
>
> a) In ocfs2_find_victim_alloc_group(), we have to convert bits to block
> first in case of global bitmap.
> b) In ocfs2_probe_alloc_group(), when finding enough bits in block group
> bitmap, we have to back off move_len to start pos as well, otherwise it
> may
2010 Oct 31
6
Horrible btrfs performance due to fragmentation
On Mon, Oct 11, 2010 at 6:46 PM, Calvin Walton <calvin.walton@gmail.com> wrote:
> On Mon, 2010-10-11 at 03:30 +0300, Felipe Contreras wrote:
>> I use btrfs on most of my volumes on my laptop, and I''ve always felt
>> booting was very slow, but definitely sure is slow, is starting up
>> Google Chrome:
>>
>> encrypted ext4: ~20s
>> btrfs: ~2:11s
2013 May 11
4
Defragmentation of large files
Hi list,
I have a few large image files (VMware workstation VMDKs and TrueCrypt
containers) which I routinely back up over the network to a btrfs raid10
volume via bigsync (https://code.google.com/p/bigsync/).
The VM images in particular get really fragmented due to CoW, which is
expected. I haven''t yet switched off CoW on the backups directory mainly
to experiment and see what
2005 Jun 17
1
[Q] Is this true and does it mean there is dynamic defragmentation in ext2/3?
Someone recently posted the following statement midway down the page
at
http://forums.gentoo.org/viewtopic-t-305871-postdays-0-postorder-asc-highlight-ext3+ordered+data-start-25.html
>You don't need to defragment ext2/ext3 because as you use the
>filesystem file blocks and inodes are moved around and reallocated
>to keep the data nearly contiguous. It's not perfect, but it
2005 Dec 16
1
Repacking files on ext3?
I found this thread from a few months ago that seems to have been
started by someone with the same problem I have, but it was not resolved:
https://www.redhat.com/archives/ext3-users/2005-March/msg00000.html
I have been trying to speed up my boot times and I notice that a lot of
time is spent waiting on IO. Even with readahead-list precacheing
files, it is reading at less than 1/4 of my
2007 Dec 18
1
btrfs timeline - fragmentation and delayed allocation
Hi!
Is there plans for fragmentation analyzing/reporting and online defragmentation
tools for btrfs?
And what about delayed allocation?
Thanks!
2010 Dec 19
1
Defrag guest fs
On Sun, Dec 19, 2010 at 12:12:58PM +0100, Olivier Hault wrote:
> For a while, I wonder if it would be possible to defrag guest fs
> from the host. I can see two flavors a) offline defrag, b) online
> defrag of the guest fs
>
> I there already solutions of works in progress to support those
> operations ?
We don't support this right now. However it is certainly something we
2012 Sep 09
13
enquiry about defrag
Hi all,
i am new on btrfs, i am testing KVM on btrfs (host: kernel x86-64 3.5.3), the performance is reasonable.
I have two question on defrag, can someone help me?
1. According to btrfs wiki, defragment a COW file will produce two unrelated files.
Does it apply to the "autodefrag" mount option?
2. Is there any command for the fragmentation status of a file/dir ? e.g. fragment
2011 Oct 08
5
defrag makes fragmentation worse
Kernel 3.1-rc8
btrfs-progs-0.19
mount options: noatime,autodefrag (space_cache is enabled)
There are snapshots present on the filesystem.
When I do a btrfs fi defrag on a file, the file becomes much more
fragmented. The end result can be a file with 20k times more fragments
than before. Initially I thought the extents were just smaller but
were next to each other, so I checked with both
2013 Jul 20
11
Lots of harddrive chatter on after booting with btrfs on root (slow boot)
Hi,
I''ve been using btrfs for my root partition for about a month on
archlinux and recently Ive started using the i3 window manager and
starting X manually and I now boot to run level 3 (multi-user.target
for systemd) and Ive noticed that booting archlinux on a btrfs root,
there is a lot off hdd chatter after the login prompts are displayed,
which doesnt happen with ext4 on root, so I
2023 Feb 28
0
[merged mm-hotfixes-stable] ocfs2-fix-non-auto-defrag-path-not-working-issue.patch removed from -mm tree
The quilt patch titled
Subject: ocfs2: fix non-auto defrag path not working issue
has been removed from the -mm tree. Its filename was
ocfs2-fix-non-auto-defrag-path-not-working-issue.patch
This patch was dropped because it was merged into the mm-hotfixes-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From:
2023 Feb 23
0
+ ocfs2-fix-non-auto-defrag-path-not-working-issue.patch added to mm-hotfixes-unstable branch
The patch titled
Subject: ocfs2: fix non-auto defrag path not working issue
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
ocfs2-fix-non-auto-defrag-path-not-working-issue.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/ocfs2-fix-non-auto-defrag-path-not-working-issue.patch
This patch
2023 Mar 06
0
Patch "ocfs2: fix non-auto defrag path not working issue" has been added to the 6.1-stable tree
This is a note to let you know that I've just added the patch titled
ocfs2: fix non-auto defrag path not working issue
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ocfs2-fix-non-auto-defrag-path-not-working-issue.patch
and it can be found in the queue-6.1 subdirectory.