31 Oct
2015
31 Oct
'15
10:58 a.m.
Howard Chu wrote:
A note about this revised patch - accesslog uses op->o_time/op->o_tincr to generate its RDNs. We actually have a problem here in that microsecond resolution may no longer be adequate. Back in January I was on site with a customer whose 64-core server was hitting ~1 million queries/sec. Granted, that was with syslog and accesslog disabled; with logging enabled we're far more limited.
Very soon we're going to need higher resolution when logging is enabled.
At that speed I'm mostly concerned about entryCSN values and MMR conflict resolution.
Ciao, Michael.