[lvm-devel] master - tests: performance testing
Zdenek Kabelac
zkabelac at fedoraproject.org
Thu Jun 6 10:17:05 UTC 2013
Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=b24aad1622a540ab71bc9e9425bdecfc17f443c9
Commit: b24aad1622a540ab71bc9e9425bdecfc17f443c9
Parent: 215ab4c9cec497465a60b91ef53046665ed5e1d2
Author: Zdenek Kabelac <zkabelac at redhat.com>
AuthorDate: Thu Jun 6 12:14:53 2013 +0200
Committer: Zdenek Kabelac <zkabelac at redhat.com>
CommitterDate: Thu Jun 6 12:14:53 2013 +0200
tests: performance testing
Tests speed of activation and deactivation of a lot of volumes.
Currently limited to 1000LVs
TODO: explore why lvmetad fails with higher number.
---
test/shell/vgchange-many.sh | 52 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 52 insertions(+), 0 deletions(-)
diff --git a/test/shell/vgchange-many.sh b/test/shell/vgchange-many.sh
new file mode 100644
index 0000000..491c8b1
--- /dev/null
+++ b/test/shell/vgchange-many.sh
@@ -0,0 +1,52 @@
+#!/bin/sh
+# Copyright (C) 2013 Red Hat, Inc. All rights reserved.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+# Check perfomance of activation and deactivation
+. lib/test
+
+# FIXME: lvmetad fails with i.e. 1500 device on memory failure...
+
+# Number of LVs to create
+DEVICES=1000
+
+aux prepare_pvs 1 400
+
+vgcreate -s 128K $vg $(cat DEVICES)
+
+vgcfgbackup -f data $vg
+
+# Generate a lot of devices (size of 1 extent)
+awk -v DEVICES=$DEVICES '/^\t\}/ { \
+ printf("\t}\n\tlogical_volumes {\n");\
+ cnt=0;
+ for (i = 0; i < DEVICES; i++) { \
+ printf("\t\tlvol%06d {\n", i);\
+ printf("\t\t\tid = \"%06d-1111-2222-3333-2222-1111-%06d\"\n", i, i); \
+ print "\t\t\tstatus = [\"READ\", \"WRITE\", \"VISIBLE\"]"; \
+ print "\t\t\tsegment_count = 1"; \
+ print "\t\t\tsegment1 {"; \
+ print "\t\t\t\tstart_extent = 0"; \
+ print "\t\t\t\textent_count = 1"; \
+ print "\t\t\t\ttype = \"striped\""; \
+ print "\t\t\t\tstripe_count = 1"; \
+ print "\t\t\t\tstripes = ["; \
+ print "\t\t\t\t\t\"pv0\", " cnt++; \
+ printf("\t\t\t\t]\n\t\t\t}\n\t\t}\n"); \
+ } \
+ }
+ {print}
+' data >data_new
+
+vgcfgrestore -f data_new $vg
+
+# Activate and deactivate all of them
+vgchange -ay $vg
+vgchange -an $vg
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