On Fri, Oct 14, 2005 at 11:20:02AM -0500, Eric Anderson wrote: > For statistics gathering purposes though, should I worry about this, or > go for 'fast and imperfect' instead of 'perfect and slow'? With > filesystems, I think it's more important to leave performance high and > get a notion of the statistics, rather than impact performance for > perfect stats (that you may only look at occasionally anyhow). Losing the odd count probably isn't a problem, but I think there's the possibility of a badly wrong value if you're updating a 64-bit word in two halves. For example, it might be possible to wrap around from 00000000ffffffff to 0000000000000000 instead of 0000000100000000.Received on Fri Oct 14 2005 - 14:46:42 UTC
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:38:45 UTC