Gadget fsslower

fsslower shows open, read, write and fsync operations slower than a threshold

The following parameters are supported:

filesystem: Which filesystem to trace [btrfs, ext4, nfs, xfs]
minlatency: Min latency to trace, in ms. (default 10)

Example CR

apiVersion: gadget.kinvolk.io/v1alpha1
kind: Trace
metadata:
  name: fsslower
  namespace: gadget
spec:
  node: ubuntu-hirsute
  gadget: fsslower
  runMode: Manual
  outputMode: Stream
  filter:
    namespace: default

Operations

start

Start fsslower gadget

$ kubectl annotate -n gadget trace/fsslower \
    gadget.kinvolk.io/operation=start

stop

Stop fsslower gadget

$ kubectl annotate -n gadget trace/fsslower \
    gadget.kinvolk.io/operation=stop

Output Modes

Stream