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authorSakib Sajal <sakib.sajal@windriver.com>2021-03-22 04:32:24 -0400
committerRichard Purdie <richard.purdie@linuxfoundation.org>2021-03-23 22:51:20 +0000
commit26d82f92e5ed2ebdde158d66b86eaf248f56892a (patch)
tree97b3ce744ca3a5763d683bbb117ebd687af80713 /scripts
parenta0dc36d60809a0a937bbb02ec27ba768ef177063 (diff)
downloadopenembedded-core-contrib-26d82f92e5ed2ebdde158d66b86eaf248f56892a.tar.gz
scripts: add oe-time-dd-test.sh
oe-time-dd-test records how much time it takes to write <count> number of kilobytes to the filesystem. It also records the number of processes that are in running (R), uninterruptible sleep (D) and interruptible sleep (S) state from the output of "top" command. The purporse of this script is to find which part of the build system puts stress on the filesystem io and log all the processes. Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/oe-time-dd-test.sh23
1 files changed, 23 insertions, 0 deletions
diff --git a/scripts/oe-time-dd-test.sh b/scripts/oe-time-dd-test.sh
new file mode 100644
index 0000000000..970a86dff0
--- /dev/null
+++ b/scripts/oe-time-dd-test.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+#
+# oe-time-dd-test records how much time it takes to
+# write <count> number of kilobytes to the filesystem.
+# It also records the number of processes that are in
+# running (R), uninterruptible sleep (D) and interruptible
+# sleep (S) state from the output of "top" command.
+# The purporse of this script is to find which part of
+# the build system puts stress on the filesystem io and
+# log all the processes.
+
+usage() {
+ echo "Usage: $0 <count>"
+}
+
+if [ $# -ne 1 ]; then
+ usage
+ exit 1
+fi
+
+uptime
+/usr/bin/time -f "%e" dd if=/dev/zero of=foo bs=1024 count=$1 conv=fsync
+top -b -n 1 | grep -v "0 0 0" | grep -E ' [RSD] ' | cut -c 46-47 | sort | uniq -c