Hi guys,
My Btrfs fs has a performance problem which I hope you can help me
solve. I have a dataset of around 3.15 TiB, that has lived on a ZFS
volume for almost two years (ZRAID1, 4 2TiB disks). In order to move
to Btrfs I bought myself a 4TiB disk with the idea of buying a new one
next week and
I use Ubuntu with kernel 3.8.0-19-generic. I also tested with the
latest live disk of Arch Linux; write performance was the same (bad).
My mount options: rw,compress=lzo.
Iotop does not show any strange disk activity.
2013/4/28 Harald Glatt m...@hachre.de:
On Sun, Apr 28, 2013 at 9:10 PM, John
On Sun, Apr 28, 2013 at 9:18 PM, John . btrfsp...@gmail.com wrote:
I use Ubuntu with kernel 3.8.0-19-generic. I also tested with the
latest live disk of Arch Linux; write performance was the same (bad).
My mount options: rw,compress=lzo.
Iotop does not show any strange disk activity.
I just started up my usenet reader (which generate a lot of small
files) and transferred two large files (7,5GiB) at the same time.
Performance seems all right again! :D Thanks!
Could you explain to me why each of the options could have a positive
effect on performance? The wiki explains what the
On Sun, Apr 28, 2013 at 9:53 PM, John . btrfsp...@gmail.com wrote:
I just started up my usenet reader (which generate a lot of small
files) and transferred two large files (7,5GiB) at the same time.
Performance seems all right again! :D Thanks!
Could you explain to me why each of the options
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On 28/04/13 12:57, Harald Glatt wrote:
If you want better answers ...
There is a lot of good information at the wiki and it does see regular
updates. For example the performance mount options are on this page:
On Sun, Apr 28, 2013 at 2:17 PM, Roger Binns rog...@rogerbinns.com wrote:
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On 28/04/13 12:57, Harald Glatt wrote:
If you want better answers ...
There is a lot of good information at the wiki and it does see regular
updates. For example the
[how'd that send button get there]
space_cache is the default, set by mkfs, for a year or so now. It's
sticky, so even if it wasn't, you'd only need to mount with it once.
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