We've been seeing issues for a while that seem to relate to the number of volumes in a single vice partition. The numbers and data are inexact because there are so many damned possible parameters that affect performance, but it appears that somewhere between 10,000 and 14,000 volumes performance falls off significantly. That 40% difference in volume count results in 2x to 3x falloffs for performance in issues that affect the /vicep as a whole - backupsys, nightly dumps, vos listvol, etc.
My initial inclination is to say it's a linux issue with directory searches, but before pursuing this much further I'd be interested in hearing from anyone who's running 14,000 or move volumes in a single vicep. No, I'm not counting .backup volumes in there, so 14,000 volumes means 28,000 entries in the directory. Thanks, Steve_______________________________________________ OpenAFS-info mailing list OpenAFS-info@openafs.org https://lists.openafs.org/mailman/listinfo/openafs-info
