From 9b58258577f0ff94e132bc8f20d553ac8baec43f Mon Sep 17 00:00:00 2001
From: grev <grev>
Date: Tue, 11 Mar 2008 20:19:53 +0000
Subject: [PATCH] b=13007 i=Adilger
test_78: limit filesize to 1/2 of memtotal -256MB
---
lustre/tests/sanity.sh | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/lustre/tests/sanity.sh b/lustre/tests/sanity.sh
index 9ccd09fb6c..81f756dc67 100644
--- a/lustre/tests/sanity.sh
+++ b/lustre/tests/sanity.sh
@@ -3337,8 +3337,12 @@ test_78() { # bug 10901
NSEQ=5
F78SIZE=$(($(awk '/MemFree:/ { print $2 }' /proc/meminfo) / 1024))
echo "MemFree: $F78SIZE, Max file size: $MAXFREE"
- MEMTOTAL=$(($(awk '/MemTotal:/ { print $2 }' /proc/meminfo) / 2048))
- echo "MemTotal: $((MEMTOTAL * 2))"
+ MEMTOTAL=$(($(awk '/MemTotal:/ { print $2 }' /proc/meminfo) / 1024))
+ echo "MemTotal: $MEMTOTAL"
+# reserve 256MB of memory for the kernel and other running processes,
+# and then take 1/2 of the remaining memory for the read/write buffers.
+ MEMTOTAL=$(((MEMTOTAL - 256 ) / 2))
+ echo "Mem to use for directio: $MEMTOTAL"
[ $F78SIZE -gt $MEMTOTAL ] && F78SIZE=$MEMTOTAL
[ $F78SIZE -gt 512 ] && F78SIZE=512
[ $F78SIZE -gt $((MAXFREE / 1024)) ] && F78SIZE=$((MAXFREE / 1024))
--
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