Thanks for all quick responses for my question. My original question is:
>Hi all, I am looking for some general tools to locate network/system(Solaris
>2.x) bottlenecks. Sometimes, I feel the network running very slow even my
>systems running as normal, for instance, long response time in telnet or longer
>loading time by unsing web broswer.
The answers are listed as followings:
>From Rich Kulawiec <rsk@itw.com>
I'd start with some combination of proctool, top, ntop, nfswatch, and argus
and make sure that individual systems are healthy before focusing on the
network. (A lot of single-system problems look like network problems.)
>From Shane Bouslough <shane.bouslough@peri.com>
You can always use proctool and ruletool (since renamed to something else
that I forget at the moment) for system level stats. Also, sar can give
interesting information. I highly recommend the Sunsoft Press book by
Adrian Cockroft on tuning Solaris systems.
As for the network, ping -s and traceroute are your friends. Web browser
load times are much harder to pinpoint since (at least for Internet use
rather than Intranet use) the problem can be anywhere along the network
from you to the destination.
There are also a myriad of commercial products for LAN debugging.
>From Cheng, Bruce <Bruce.Cheng@aspect.com>
I would suggest getting a network topology map of how things are
connected (all the way up to Internet ) in your area as the first step.
>From Thomas White <twhite@bear.com>
Found it...etherman packetman and internetman
http://www.curtin.edu.au/~netman/
all the packages are listed here...
>From Richard Cooper <rich@desdbx.com>
1. Check out the man pages for sar, iostat, vmstat, and netstat.
2. There are a couple of good books available:
System Performance Tuning Mike Loukides
Optimizing Unix for Performance Amir Mahidimehr
Also, take a look at perftune.ps at
http://sunsolve.sun.com:80/cserve/csmindexes/lib14.idx.html
>From Colin Melville <iv08480@issc02.mdc.com>
Search the web for "top" and "proctool".
>From Alex Finkel <afinkel@pfn.com>
Get the SE Toolkit. Related articles can be found at
http://www.sun.com/sunworldonline. Links to SE are there and also at
ftp://opcom.sun.ca/.
>From Dave Foster foster@bial1.ucsd.edu
Try BING, which measures network bandwidth between workstations.
You can specify a local and remote IP, or two remote IP's. You
can get this at:
http://smc.vnet.net/solaris_2.5.html
Thanks again for your helps.
Jian
-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Jian Guo SUN * * Dept of Math, Statics and Computer Science * * Marquette University * * Milwaukee, Wisconsin * * Home Phone: (414)277-5094 * * Email: sun1@mscs.mu.edu * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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