Linux Scalability Effort - Call on 4/20/01 ------------------------------------------ Tim Wright - IBM looking at io paths. Looking at running BT RealWorld benchmark JWright: info on previous work with databases. rawio, kaio, etc. The patches are still on oss.sgi.com. Also did a quick explaination fo some of the TPC-H benchmarking work. Will try to get Doug Nelson as contact to explain any further. TWright: looking at a faster gettimeofday as DBs do that call over and over JWright: we did a patch last year and found no performance gain, but that could be because the bottleneck was higher up and it might be a good time to revisit it. John Wright - Gearing up AIM7 tests for SNIA to compare to O2k results Steve Carbonari - Will send out new patch to fix sync_buf/dd hang problem for review Found that their WebBench setup is underpowered and looking at beefing it up. Currently running 10 engines/client Wookie: OSDL is also setting up a WebBench setup. Reviewing locking paper, will send back info soon. Team going to focus on enhancements to 2.4 (worry later about 2.5 as we will have to live with 2.4 for a long while). Bounce buffers is one issue. JWright: should be acceptable for 2.4 Tim Wright - have Linux booting on 4 quads general reaction from the kernel guys @MQ patch is that long queues are the result of broken apps. JWright: maybe Doug can tell us how much effect the MQ patch had on the TPC-H benchmark. JWright: has anyone run across this OSDB(Open source database benchmark) from someone at Compaq? Answer: No. Jwright: Will send out pointer. JWright: What projects have signed up for ODSL time? Wookie: GFS, MySQL, Chronium, ReiserFS, Postgres. All of them have off then on interest.