07-02-2012
So is the "reads merged" inclusive or exclusive of reads that were "merged" because of read_ahead_kb? If reads merged isn't a good indicator of when I have read ahead set to the sweet spot then what would be the metric(s) to watch?
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I have a machine A NFS mounted on machine B
I am doing a build from machine B on the MFS mounted dir of machine A but I keep getting the following:
NFS server A not responding still trying.
I go to machine A and can log onto machine A and everything seems fine.
How do I go about finding... (6 Replies)
Discussion started by: brv
6 Replies
2. UNIX for Advanced & Expert Users
Hi,
I am seeing very high kernel usage and very high load averages on my system (Although we are not loading much data to our database). Here is the output of top...does anyone know what i should be looking at?
Thanks,
Lorraine
last pid: 13144; load averages: 22.32, 19.81, 16.78 ... (4 Replies)
Discussion started by: lorrainenineill
4 Replies
3. UNIX for Dummies Questions & Answers
Hi, I have 600 text files. In each txt file, I have 3 columns, e.g:
File 1
a 0.21 0.003
b 0.34 0.004
c 0.72 0.002
File 2
a 0.25 0.0083
b 0.38 0.0047
c 0.79 0.00234
File 3
a 0.45 0.0063
b 0.88 0.0027
c 0.29 0.00204
...
my filename as "sc2408_0_5278.txt sc2408_0_5279.txt... (2 Replies)
Discussion started by: libenhelen
2 Replies
4. Shell Programming and Scripting
I would like to write shell/perl script which identifies the top unix processes that are performing high disk I/O's or/and writes
If any one knows the solution please help me?
-Swamy (0 Replies)
Discussion started by: avsswamy
0 Replies
5. UNIX for Advanced & Expert Users
Guys,
Is there any UNIX command that captures the 'Unix process which is performing high disk I/O reads and writes'.
can you help me in this?
-Swamy (6 Replies)
Discussion started by: avsswamy
6 Replies
6. Shell Programming and Scripting
hi,
i used paste file1.txt file2.txt > file3.txt to merge 2 columns from file1 and 4 columns from file2.
file1
scaffold_217 scaffold_217
file2
CHRSM N scaffold_217.pf scaffold_217.fsa
the result is as follows:-
scaffold_217 scaffold_217
CHRSM ... (6 Replies)
Discussion started by: redse171
6 Replies
7. UNIX for Dummies Questions & Answers
I was analyzing the Disk read using hdparm utility.
This is what i got as a result.
# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 108 MB in 3.04 seconds = 35.51 MB/sec
# hdparm -T /dev/sda
/dev/sda:
Timing cached reads: 3496 MB in 1.99 seconds = 1756.56 MB/sec... (1 Reply)
Discussion started by: pinga123
1 Replies
8. Red Hat
i have a Intel Quad Core Xeon X3440 (4 x 2.53GHz, 8MB Cache, Hyper Threaded) with 16gig and 1tb harddrive with a 1gb port and my apache is causing my cpu to go up to 100% on all four cores heres my http.config
<IfModule prefork.c>
StartServers 10
MinSpareServers 10
MaxSpareServers 15... (4 Replies)
Discussion started by: awww
4 Replies
9. Shell Programming and Scripting
i have a file in the format
acti_id|signature
1|abc
def
xyz
2|lmn
pqr
lmn
3|ggg
ppp
mmm
it is in csv format
i want the file in the format
act_id|signature
1|abcdefxyz
2|lmnpqrlmn
3|gggpppmmm
i have tried awk but without much success. i replaced the new line with null but it... (10 Replies)
Discussion started by: djrulz123
10 Replies
10. Shell Programming and Scripting
Hi,
I have two files separated by bars at each line
File 1 :
A|4356|13456|23456
A|4356|2986|98732
A|8765|218|1432567
File 2:
B|12|13456|1234567
B|11|13456|123456789
B|33|2986|98732
B|11|2986|14578965
B|8765|218|147584
Common field is third field like 13456, 2986 and 218 in both... (5 Replies)
Discussion started by: Mannu2525
5 Replies
LEARN ABOUT LINUX
inotify_rm_watch
INOTIFY_RM_WATCH(2) Linux Programmer's Manual INOTIFY_RM_WATCH(2)
NAME
inotify_rm_watch - remove an existing watch from an inotify instance
SYNOPSIS
#include <sys/inotify.h>
int inotify_rm_watch(int fd, uint32_t wd);
DESCRIPTION
inotify_rm_watch() removes the watch associated with the watch descriptor wd from the inotify instance associated with the file descriptor
fd.
Removing a watch causes an IN_IGNORED event to be generated for this watch descriptor. (See inotify(7).)
RETURN VALUE
On success, inotify_rm_watch() returns zero, or -1 if an error occurred (in which case, errno is set appropriately).
ERRORS
EBADF fd is not a valid file descriptor.
EINVAL The watch descriptor wd is not valid; or fd is not an inotify file descriptor.
VERSIONS
Inotify was merged into the 2.6.13 Linux kernel.
CONFORMING TO
This system call is Linux-specific.
SEE ALSO
inotify_add_watch(2), inotify_init(2), inotify(7)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2006-02-07 INOTIFY_RM_WATCH(2)