OAS/NES 2.01 performance problem

OAS 3.0.0.0.1.8/NES 2.01/HP-UX 10.20 - PA RISC 8000 We were performance testing Oracle's bundled Spyglass web listener against Netscape 2.01 as an external web listener. We're interested in Netscape as a web listerner because of some operability advantages.

We expected that the Spyglass web server might outperform Netscape by a small margin (after all, Oracle's probably deep under the hood of Spyglass), but the performance difference was significant.

We're using a custom written C cartridge. The results of a basic query to the cartridge (Spyglass) come back in less than 4 seconds like clockwork. OTOH, the same cartridge called from Netscape ranges from about 5 seconds on first call, up to 25 seconds.

Running top, on first call the Netscape server grabs about 3% of the WCPU, returns results, the keeps sucking cycles up to about 30% WCPU even though the result page has long since generated. It ranges back to normal in a couple of minutes. If you call the cartridge again during ramp up/ramp down, performance is miserable. If you call the cartridge after ramp down, performance is reasonable.

Has anyone seen similar behavior? Pointers to patches/fixes would be appreciated.

-C Received on Tue May 25 1999 - 18:42:13 CDT