path: root/README
diff options
authorJens Axboe <>2005-09-26 14:26:24 +0200
committerJens Axboe <>2005-09-26 14:26:24 +0200
commitbf0720afa8e5f5e2a2bb87abc0b015f35beadef3 (patch)
treee7fb0e719707339024d6655512efabe7f3861fae /README
parent0583b6a25eaa259bf9ade5746452473464814f6e (diff)
[PATCH] blkparse: Add option to hash process by name
For some traces, you really don't want to see thousands of cc1 processes in the stats, you want to collect the stats by name instead. This adds the -n option to blkparse, enabling that. Switched to Jenkins hash at the same time, as it allows for easy hash-by-u32 or hash-by-name as we see fit.
Diffstat (limited to 'README')
1 files changed, 1 insertions, 0 deletions
diff --git a/README b/README
index 058306f..c96d20a 100644
--- a/README
+++ b/README
@@ -63,6 +63,7 @@ $ blkparse -i <input> [ -o <output> ] [ -b rb_batch ] [ -s ] [ -t ] [ -q ]
-o Output file. If not given, output is stdout.
-b stdin read batching.
-s Show per-program io statistics.
+ -n Hash processes by name, not pid.
-t Track individual ios. Will tell you the time a request took to
get queued, to get dispatched, and to get completed.
-q Quiet. Don't display any stats at the end of the trace.