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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2014-05-02 15:20:05 +0400 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2014-07-10 20:35:16 +0400 |
| commit | db1866ffeed2e142208a801f7598326b92ebf7c5 (patch) | |
| tree | c3abaf11a7f9d4547f021120948cedac88e67d79 /drivers/cpuidle/sysfs.c | |
| parent | 4d3d5aa83aa45f1c7c9644b30e3a67e42c26695f (diff) | |
| download | linux-db1866ffeed2e142208a801f7598326b92ebf7c5.tar.xz | |
drbd: debugfs: add in_flight_summary data
To help diagnosing "high latency" or "hung" IO situations on DRBD,
present per drbd resource group a summary of operations currently in progress.
First item is a list of oldest drbd_request objects
waiting for various things:
* still being prepared
* waiting for activity log transaction
* waiting for local disk
* waiting to be sent
* waiting for peer acknowledgement ("receive ack", "write ack")
* waiting for peer epoch acknowledgement ("barrier ack")
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/cpuidle/sysfs.c')
0 files changed, 0 insertions, 0 deletions