01-30-2019
ssh, scp et al have high CPU overhead from encryption and aren't representative of down-to-the-wire performance.
You also have your disks to consider. How fast would that happen if you wrote to /dev/null instead of ssh? Also, caching. Does it speed up when you run it twice?
This User Gave Thanks to Corona688 For This Post:
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hiya all,
I am a newbie sysadmin to AIX, i have worked on HPUX for 3 years.
I have started a new role with in an IBM house and because there is me and one other there are a couple of issues I cannot work out:
We havehad a production server slowing down processing batch jbs over the past... (6 Replies)
Discussion started by: chlawren
6 Replies
2. AIX
Hi,
I am using AIX 5.2, and I want to copy some files from one server to a remote server using tar command. Can anybody tell me exact command?
Thanks.
Aqeel (2 Replies)
Discussion started by: system-admin
2 Replies
3. AIX
I'm doing performance testing for one application which works on AIX.
But I don't know which performance parameters of memory need to be collected. Now, I just know very few:
1. page in
2. page out
3. fre
They are all collected by "vmstat" command.
I want to know, except for above... (2 Replies)
Discussion started by: adasong
2 Replies
4. AIX
I am trying to analyze the performance of an AIX system. I think I may have a disk I/O issue, but I am asking for help to validate or invalidate this assumption. I ran the commands below during a period of peak load.
Please help me to find any performance bottlenecks. Thanks in advance for your... (15 Replies)
Discussion started by: jhall
15 Replies
5. AIX
Is there is any way to increase the CPU utilization of a Embedded SQL program in AIX 5.3 .. for performance purpose. (0 Replies)
Discussion started by: Gyanendra Awast
0 Replies
6. AIX
Gurus, i have process that runs 5 times a day.
it runs normally (takes about 1 hour) to complete in 3 runs
but it is takes about ( 3 hrs to complete) two times
So i need to figure out why it takes significanlty high time during
those 2 runs.
The process is a shell script that connect to... (2 Replies)
Discussion started by: mad_man12
2 Replies
7. AIX
Hi Guys,
This is the situation I am in. Provide your views and input where should I start?
I have one P7 test server and a p520 production server. the job is taking pretty long on the P7 test server when compared to the P5 production server. below is the full detail.
Informix... (5 Replies)
Discussion started by: ithinksgreen
5 Replies
8. AIX
Hello,
I'm trying to set up an internet connection on an IBM RS/6000 7043-140 machine with AIX v 5.1. The problem is that no matter if it is setup to receive an IP address from another DHCP server or has a static IP set, it seems to act as a DHCP server that assigns a random IP address with a... (3 Replies)
Discussion started by: Xsystem
3 Replies
9. AIX
(1) Hi, Am working on FreeBSD 7.4/i386 and installed Opera 11.01 through ports collection manually... But when I run first time am getting "opera: cannot connect X server. Error: Unknown error: 0" What is this error all about???? Please help me to sort out this issue!!!
(2) Hi, currently am... (12 Replies)
Discussion started by: Priya Amaresh
12 Replies
10. AIX
Hi,
I'm supposed to capture many performance stats on AIX 6 and stuck up with below:
Priority queue
Disk cache hit%
Page out rate
Swap out rate
Memory queue
I see vmstatis helpful for "page out" but not sure how to get the "rate".
Could anyone please let me know how to get these... (4 Replies)
Discussion started by: reddyr
4 Replies
LEARN ABOUT CENTOS
tapset::networking
tapset::networking(3stap) tapset::networking(3stap)
NAME
tapset::networking - systemtap networking tapset
DESCRIPTION
This family of probe points is used to probe the activities of the network device.
netdev.receive
Data received from network device.
See probe::netdev.receive(3stap)
for details.
netdev.transmit
Network device transmitting buffer
See probe::netdev.transmit(3stap)
for details.
netdev.change_mtu
Called when the netdev MTU is changed
See probe::netdev.change_mtu(3stap)
for details.
netdev.open
Called when the device is opened
See probe::netdev.open(3stap)
for details.
netdev.close
Called when the device is closed
See probe::netdev.close(3stap)
for details.
netdev.hard_transmit
Called when the devices is going to TX (hard)
See probe::netdev.hard_transmit(3stap)
for details.
netdev.rx
Called when the device is going to receive a packet
See probe::netdev.rx(3stap)
for details.
netdev.change_rx_flag
Called when the device RX flag will be changed
See probe::netdev.change_rx_flag(3stap)
for details.
netdev.set_promiscuity
Called when the device enters/leaves promiscuity
See probe::netdev.set_promiscuity(3stap)
for details.
netdev.ioctl
Called when the device suffers an IOCTL
See probe::netdev.ioctl(3stap)
for details.
netdev.register
Called when the device is registered
See probe::netdev.register(3stap)
for details.
netdev.unregister
Called when the device is being unregistered
See probe::netdev.unregister(3stap)
for details.
netdev.get_stats
Called when someone asks the device statistics
See probe::netdev.get_stats(3stap)
for details.
netdev.change_mac
Called when the netdev_name has the MAC changed
See probe::netdev.change_mac(3stap)
for details.
SEE ALSO
probe::netdev.receive(3stap), probe::netdev.transmit(3stap), probe::netdev.change_mtu(3stap), probe::netdev.open(3stap),
probe::netdev.close(3stap), probe::netdev.hard_transmit(3stap), probe::netdev.rx(3stap), probe::netdev.change_rx_flag(3stap),
probe::netdev.set_promiscuity(3stap), probe::netdev.ioctl(3stap), probe::netdev.register(3stap), probe::netdev.unregister(3stap),
probe::netdev.get_stats(3stap), probe::netdev.change_mac(3stap), stap(1), stapprobes(3stap)
IBM
--- tapset::networking(3stap)