Lustre 1.6 Operations Manual

19.4.3.3 Batch and Test
This section lists lst batch and test commands.
add_batch NAME
The default batch (named “batch”) is created when the session is started. However,
the user can specify a batch name by using add_batch:
$ lst add_batch bulkperf
add_test --batch BATCH [--loop #] [--concurrency #] [--distribute #:#]
from GROUP --to GROUP TEST ...
Adds a test to batch. For now, TEST can be brw and ping:
–-loop #
–-concurrency #
–-from GROUP
–-to GROUP
–-distribute #:#
Loop count of the test.
Concurrency of the test.
The source group (test client).
The target group (test server).
The distribution of nodes in clients and servers. The first number of
distribute is a subset of client (count of nodes in the “from” group). The
second number of distribute is a subset of server (count of nodes in the
“to” group); only nodes in two correlative subsets will talk. The following
examples are illustrative:
Clients: (C1, C2, C3, C4, C5, C6)
Server: (S1, S2, S3)
--distribute 1:1
(C1->S1), (C2->S2), (C3->S3), (C4->S1), (C5->S2), (C6->S3) \
/* -> means test conversation */
--distribute 2:1
(C1,C2->S1), (C3,C4->S2), (C5,C6->S3)
--distribute 3:1
(C1,C2,C3->S1), (C4,C5,C6->S2), (NULL->S3)
--distribute 3:2
(C1,C2,C3->S1,S2), (C4,C5,C6->S3,S1)
--distribute 4:1
(C1,C2,C3,C4->S1), (C5,C6->S2), (NULL->S3)
--distribute 4:2
(C1,C2,C3,C4->S1,S2), (C5, C6->S3, S1)
--distribute 6:3
(C1,C2,C3,C4,C5,C6->S1,S2,S3)
Chapter 19 Lustre I/O Kit 19-25