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Subject[for-next][PATCH 5/8] ktest.pl: Just open up the log file once
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

Currently, every write to the log file is done by opening the file, writing
to it, then closing the file. This rather expensive. Just open it at the
beginning and close it at the end.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
tools/testing/ktest/ktest.pl | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 0d04b8a2b5a2..f20a81bb3abe 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -509,9 +509,7 @@ EOF

sub _logit {
if (defined($opt{"LOG_FILE"})) {
- open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
- print OUT @_;
- close(OUT);
+ print LOG @_;
}
}

@@ -1780,8 +1778,6 @@ sub run_command {
(fail "unable to exec $command" and return 0);

if (defined($opt{"LOG_FILE"})) {
- open(LOG, ">>$opt{LOG_FILE}") or
- dodie "failed to write to log";
$dolog = 1;
}

@@ -1829,7 +1825,6 @@ sub run_command {
}

close(CMD);
- close(LOG) if ($dolog);
close(RD) if ($dord);

$end_time = time;
@@ -4091,8 +4086,11 @@ if ($#new_configs >= 0) {
}
}

-if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
- unlink $opt{"LOG_FILE"};
+if (defined($opt{"LOG_FILE"})) {
+ if ($opt{"CLEAR_LOG"}) {
+ unlink $opt{"LOG_FILE"};
+ }
+ open(LOG, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
}

doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
@@ -4453,14 +4451,16 @@ if ($opt{"POWEROFF_ON_SUCCESS"}) {
}


-if (defined($opt{"LOG_FILE"})) {
- print "\n See $opt{LOG_FILE} for the record of results.\n";
-}
-
doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";

if ($email_when_finished) {
send_email("KTEST: Your test has finished!",
"$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
}
+
+if (defined($opt{"LOG_FILE"})) {
+ print "\n See $opt{LOG_FILE} for the record of results.\n\n";
+ close LOG;
+}
+
exit 0;
--
2.26.2

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