Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Joshua West wrote: > J.B., > > Are you making use of LVM snapshots by any chance? I've read reports of > extremely awful performance as a result of LVM2 CoW code -- whether > you're on the trunk volume or any snapshot volumes: > > http://www.nikhef.nl/~dennisvd/lvmcrap.html > > 1GB took 20sec to write w/o snapshots, 16min with snapshots! > > If you're using LVM snapshots on that host, then perhaps that explains > the performance penalties you've noticed. > Nope, no snapshots.