Author: cperciva
Date: Wed Oct 16 08:19:58 2013
New Revision: 256594
URL: http://svnweb.freebsd.org/changeset/base/256594
Log:
Speed up `freebsd-update IDS` by using IFS to split fields instead of
forking lots of processes to run echo|cut. In one test this reduced
the CPU time from 980s to 134s and the wallclock time from 806s to
132s.
Submitted by: Oleg Ginzburg
Modified:
head/usr.sbin/freebsd-update/freebsd-update.sh
Modified: head/usr.sbin/freebsd-update/freebsd-update.sh
==============================================================================
--- head/usr.sbin/freebsd-update/freebsd-update.sh Wed Oct 16 08:14:05
2013 (r256593)
+++ head/usr.sbin/freebsd-update/freebsd-update.sh Wed Oct 16 08:19:58
2013 (r256594)
@@ -3033,21 +3033,8 @@ IDS_compare () {
mv INDEX-NOTMATCHING.tmp INDEX-NOTMATCHING
# Go through the lines and print warnings.
- while read LINE; do
- FPATH=`echo "${LINE}" | cut -f 1 -d '|'`
- TYPE=`echo "${LINE}" | cut -f 2 -d '|'`
- OWNER=`echo "${LINE}" | cut -f 3 -d '|'`
- GROUP=`echo "${LINE}" | cut -f 4 -d '|'`
- PERM=`echo "${LINE}" | cut -f 5 -d '|'`
- HASH=`echo "${LINE}" | cut -f 6 -d '|'`
- LINK=`echo "${LINE}" | cut -f 7 -d '|'`
- P_TYPE=`echo "${LINE}" | cut -f 8 -d '|'`
- P_OWNER=`echo "${LINE}" | cut -f 9 -d '|'`
- P_GROUP=`echo "${LINE}" | cut -f 10 -d '|'`
- P_PERM=`echo "${LINE}" | cut -f 11 -d '|'`
- P_HASH=`echo "${LINE}" | cut -f 12 -d '|'`
- P_LINK=`echo "${LINE}" | cut -f 13 -d '|'`
-
+ local IFS='|'
+ while read FPATH TYPE OWNER GROUP PERM HASH LINK P_TYPE P_OWNER P_GROUP
P_PERM P_HASH P_LINK; do
# Warn about different object types.
if ! [ "${TYPE}" = "${P_TYPE}" ]; then
echo -n "${FPATH} is a "
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