-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Peter,
On 5/18/2009 11:37 AM, Peter Crowther wrote: >> I suppose I could gauge each test so it would take (roughly) a certain >> > amount of time (say, 10 minutes). At least then I'd know how long the >> > entire battery would take :) > > I think that's probably a better approach. Hey, it looks like the -t switch will allow me to simply get as many requests into, say, 10 minutes as possible. That would be great to know how long the tests will take :) I think I'll modify my testing script and re-sample, especially since I'm likely to be upgrading everything, anyway. > As a rough first cut, vmstat 5 and watch the numbers ;-). iostat > too, if you can. If CPU isn't pegged at 100% and the disk isn't at > full capacity, that's an interesting result as it implies the box has > spare capacity and there's contention elsewhere - often lock > contention, as David Kerber has recently seen! I wouldn't expect 100% CPU usage. I would expect that most of the wait time is pushing the bytes through the NIC. Right now, my throw-away test against TC5.5/APR is showing java using between 65-70% of the CPU. > It just seems a shame to waste the opportunity to gather information > about *what* the rate limiter is, as well as at what point you get to > the limit. Gotcha. I have no experience with vmstat and iostat, so I'd mostly be collecting the data for others to peruse. But, I'm happy to do it (especially if it won't favor one piece of software over the other merely by /running/). Thanks, - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkoRhz4ACgkQ9CaO5/Lv0PAb5wCdEAJjWw/qVTOIfAGluXmG0EOy OIMAoJI1WSrsAyxLP8yguQCb5S/7f1gD =9y3H -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
