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Minor divide by zero error in query cache calculations

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Major Hayden 2007-08-12 19:11:35 +00:00
parent c6498519a5
commit 04e84a7752
1 changed files with 5 additions and 3 deletions
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8
mysqltuner.pl
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@ -284,8 +284,10 @@ sub calculations {
# Query cache
if ($mysqlvermajor > 3) {
$mycalc{'query_cache_efficiency'} = sprintf("%.1f",($mystat{'Qcache_hits'} / ($mystat{'Com_select'} + $mystat{'Qcache_hits'})) * 100);
$mycalc{'pct_query_cache_used'} = sprintf("%.1f",100 - ($mystat{'Qcache_free_memory'} / $myvar{'query_cache_size'}) * 100);
if ($mystat{'Qcache_lowmem_prunes'} == 0) {
if ($myvar{'query_cache_size'}) {
$mycalc{'pct_query_cache_used'} = sprintf("%.1f",100 - ($mystat{'Qcache_free_memory'} / $myvar{'query_cache_size'}) * 100);
}
if ($mystat{'Qcache_lowmem_prunes'} == 0) {
$mycalc{'query_cache_prunes_per_day'} = 0;
} else {
$mycalc{'query_cache_prunes_per_day'} = int($mystat{'Qcache_lowmem_prunes'} / ($mystat{'Uptime'}/86400));
@ -547,4 +549,4 @@ mysql_stats; # Print the server stats
make_recommendations; # Make recommendations based on stats
# ---------------------------------------------------------------------------
# END 'MAIN'
# ---------------------------------------------------------------------------
# ---------------------------------------------------------------------------