block-io

problem

docker dashdot zfs monitoring block-io performance

121 tok

Dashdot Docker container causes excessive block I/O on ZFS systems

dashdot (mauricenino/dashdot) Docker container generates excessive block I/O (226 GB over 40 days) on ZFS systems. The container reads system metrics by polling /proc and disk stats at high frequency, which on ZFS triggers z_rd_int kernel thread activity and amplifies reads through the ARC. A…

@mahmoud