Displaying 7 results from an estimated 7 matches for "readhead".
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readahead
2005 May 27
1
performance on small files transfers
...I'm confused of small files (no bigger than 50k )
transfers speed through samba,which is very slow on
my machine. Bellow is a real case,
-- SuSE professional 9.2, kernel 2.6.11,Samba 3.0.14a,reiserfs
-- Dual AMD Opteron,4G mem,Giga byte LAN
-- 2 raid 5 make up of 16 SATA hard disks
-- set readhead to 1024
I tested raids speed using bonnie++ and get 450 Mbytes/s
at 16GB files measure.So I believe the raid is not the
bottleneck.I wrote a script to get 200,000 small files no
more than 50K,totally size 8G.When I wrote these small
files to SAMBA server and get a speed about 1.5 Mbyte/s.
And...
2006 Mar 03
1
Java related (?) problems with RWeka
...ces","(Ljava/io/Reader;)V",...) failed
Exception in thread "main" java.io.IOException: end of line expected,
read Token[=], line 1
at weka.core.Instances.errms(Unknown Source)
at weka.core.Instances.getLastToken(Unknown Source)
at weka.core.Instances.readHeader(Unknown Source)
at weka.core.Instances.<init>(Unknown Source)
Error in validObject(.Object) : invalid class "jobjRef" object:
invalid object for slot "jobj" in class "jobjRef": got class "NULL",
should be or extend class "externalptr"...
2010 Aug 19
0
[GIT PULL] ocfs2 changes for 2.6.36, part 2.
...ocfs2: Remove obsolete comments before ocfs2_start_trans.
ocfs2: pass struct file* to ocfs2_write_begin_nolock.
ocfs2: pass struct file* to ocfs2_prepare_inode_for_write.
ocfs2: Add struct file to ocfs2_refcount_cow.
ocfs2: Add readahead support for CoW.
ocfs2: Add readhead during CoW.
Tristan Ye (1):
Ocfs2: Add new OCFS2_IOC_INFO ioctl for ocfs2 v8.
fs/ext3/super.c | 4 +-
fs/ext4/super.c | 8 +-
fs/jbd2/journal.c | 4 +
fs/libfs.c | 29 ++++
fs/ocfs2/aops.c | 9 +-
fs/ocfs2/aops.h | 3 +-
f...
2001 Oct 07
2
ext3 and ls in a deletted directory
Hi,
With kernel 2.4.10, when I do
$ mkdir foo; cd foo; rmdir ../foo; ls
then ls becomes zombie.
$ ps xau|grep ls
liu 596 0.0 0.0 148 88 ? D 12:03 0:00 ls
This does not happen with 2.4.10 on an ext2 filesystem,
nor with 2.4.9/ext3. The command cd instead of ls is OK.
Distribution is Slackware 8.0 and the kernels are stock ones.
Liu
2010 Oct 22
0
[GIT PULL] ocfs2 changes for 2.6.37
...luster: Release debugfs file elapsed_time_in_ms
Tao Ma (10):
ocfs2: pass struct file* to ocfs2_write_begin_nolock.
ocfs2: pass struct file* to ocfs2_prepare_inode_for_write.
ocfs2: Add struct file to ocfs2_refcount_cow.
ocfs2: Add readahead support for CoW.
ocfs2: Add readhead during CoW.
ocfs2: Add some trace log for orphan scan.
ocfs2: Remove obscure error handling in direct_write.
ocfs2: Remove unused old_id in ocfs2_commit_cache.
ocfs2: Remove obsolete comments before ocfs2_start_trans.
ocfs2: Cache system inodes of other slots.
Tristan...
2006 Mar 17
1
[RFC] mke2fs with DIR_INDEX, RESIZE_INODE by default
I've been thinking recently that we should re-enable DIR_INDEX in mke2fs
by default. When it first came out, we had done this and were bitten by
a few bugs in the code. However, this code has been in heavy use for
several thousand filesystem years in Lustre, if not elsewhere, and I'm
inclined to think it is pretty safe these days.
Likewise, RHEL/FC have had RESIZE_INODE as a standard
2015 Oct 09
4
[PATCH 0/4] v2v: Use libvirt-supplied <vmware:datacenterpath> if available.
See earlier thread on libvir-list:
https://www.redhat.com/archives/libvir-list/2015-September/thread.html#00201
Libvirt >= 1.2.20 supplies the correct dcPath parameter. If it is
available in the libvirt XML, use it, otherwise fall back to the old
method of trying to guess it from the vpx:// path.
Patches 1, 2 and 4 are just refactoring around this change.
Rich.