05-20-2008
on the clients you may also look at options like rsize, wsize and directio (for certain applications) on the client side
check the man pages.
/peter
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
can someone tell me a good site to go to in order to learn this. please do not recommen nay books because i dont have interest in that. if you know of any good sites with good straight forward explanation on how to split loads on machines that has excessive loading, please let me know
Also,... (1 Reply)
Discussion started by: TRUEST
1 Replies
2. UNIX for Dummies Questions & Answers
Hi to all,
I'm interested in finding an introduction about Performance Tuning under Unix (or Linux); can somebody please point me in the right direction?
Best regards (1 Reply)
Discussion started by: domyalex
1 Replies
3. UNIX for Advanced & Expert Users
Does anyone had perfomed a tuning with SAS on Solaris???
Performance is not so good and I found out that Share Memory an Semaphores are the same that initial instalation, I havent found info at internet
Please help (1 Reply)
Discussion started by: alex blanco
1 Replies
4. UNIX for Advanced & Expert Users
Hi
I am trying to investigate a disk performance issue, and we are not seem to be hitting the right direction in our analysis.
This is a FC disk running on USP1000 HDS system. The application is an IO intensive application, but our opinion is that it is not performing due to perceived disk... (1 Reply)
Discussion started by: theerthan
1 Replies
5. Shell Programming and Scripting
Hi All,
In last one week, i have posted many questions in this portal. At last i am succeeded to make my 1st unix script.
following are 2 points where my script is taking tooooo long.
1. Print the total number of records excluding header & footer. I have found that awk 'END{print NR -... (2 Replies)
Discussion started by: Amit.Sagpariya
2 Replies
6. Web Development
We have been tuning MySQL lately and I ran accoss two useful tools that you might be interested in:
mysqltuner.pl
tuning-primer.sh
Both of these scripts are quite useful for MySQL tuning. Here is some sample output of mysqltuner.pl
>> MySQLTuner 0.9.8 - Major Hayden... (3 Replies)
Discussion started by: Neo
3 Replies
7. Web Development
Hi Friends, This regarding tuning apache. I am running 100+ LAMP on VPS. But few of them are crashing becoz it reaches to the MaxClient Limit. I thought of Tuning. Here are the specs:
OS: OpenSuse 10
Apache: Apche/2.2.8
PHP: PHP 5.x
RAM: 1GB
Assuming 80% of it has been occupied by... (6 Replies)
Discussion started by: r00t4u
6 Replies
8. AIX
is it a good practice to enable AIO (Async I/O) and mount the oracle file system with DIO with JFS2 (Direct I/O) option?
please help (3 Replies)
Discussion started by: pchangba
3 Replies
9. Shell Programming and Scripting
This is my function in UNIX file. In this function I am
-> first replacing spaces in character 19-27 with 0
-> then if it's all zeros ( 9 zeros) replace it with space
The reason I have to make it to 0 first is that my requirement is that if this field is having value of 0 , replace it... (4 Replies)
Discussion started by: varunrbs
4 Replies
10. Solaris
Hi all, I would like to tune the nxge card as suggested by this link, but got some confusion. Can anyone advise me ?
We have
SunOS hsbc02 5.10 Generic_137137-09 sun4v sparc SUNW,Netra-CP3260
Do I have to install any patches ?
The tunning link
Networks - Siwiki
In our nxge.conf, I... (0 Replies)
Discussion started by: dehetoxic
0 Replies
LEARN ABOUT NETBSD
eshconfig
ESHCONFIG(8) BSD System Manager's Manual ESHCONFIG(8)
NAME
eshconfig -- configure Essential Communications' HIPPI network interface
SYNOPSIS
eshconfig [-estx] [-b bytes] [-c bytes] [-d filename] [-i usecs] [-m bytes] [-r bytes] [-u filename] [-w bytes] [interface]
DESCRIPTION
eshconfig is used to configure device-specific parameters and download new firmware to the Essential Communications RoadRunner-based HIPPI
network interface. The interface is very sensitive to the DMA performance characteristics of the host, and so requires careful tuning to
achieve reasonable performance. In addition, firmware is likely to change frequently, which necessitates a reasonably easy way to update
that firmware.
Available operands for eshconfig:
-b bytes
Adjust the burst size for read (by NIC of host memory) DMA.
-c bytes
Adjust the burst size for write (by NIC of host memory) DMA.
-d filename
Filename for file to download into NIC firmware. This must be a file in the standard Essential format, with :04 preceding every
line, and a tag line at the end indicating the characteristics of the firmware file.
-e Write data to EEPROM. Normally, setting tuning parameters will only persist until the system is rebooted. Setting this parameter
ensures that the changes will be written to EEPROM.
-i usecs
Interrupt delay in microseconds.
-m bytes
Minimum number of bytes to DMA in one direction (read or write) before allowing a DMA in the other direction. Tuning this prevents
one direction from dominating the flow of bytes, and artificially throttling the NIC.
-r bytes
Bytes before DMA starts for read (from host to NIC). This controls how soon the DMA is triggered; until this many bytes are
requested, the DMA will not begin.
-s Show statistics for the HIPPI NIC. Repeat the option to suppress non-zero statistics.
-t Show current tuning parameters on the host.
-u filename
Name of file to which the NIC firmware should be uploaded. Not currently supported.
-w bytes
Number of bytes required before write (from NIC to host) DMA is started. Until this many bytes are ready to be written, the DMA will
not start.
-x Reset the NIC. This is necessary for the HIPPI-FP support, as ifconfig(8) will no longer physically reset the NIC when the inter-
faces goes up and down.
Only the super-user may modify the configuration of a network interface.
DIAGNOSTICS
Messages indicating the specified interface does not exist or the user is not privileged and tried to alter an interface's configuration.
SEE ALSO
esh(4), ifconfig(8)
HISTORY
The eshconfig command first appeared in NetBSD 1.4.
BSD
June 17, 2005 BSD