run-make-check.sh: increase fs.aio-max-nr

without this change the seastar based tests fail on host with 48 cores, because the /proc/sys/fs/aio-nr used by the tests is greater than 1048576. if run-make-check.sh is used to launch the test, the default job number is `$(nproc) / 2`, and the peak number of /proc/sys/fs/aio-nr when running ctest was 3190848 when testing on the 48-core host. so we need to increase fs.aio-max-nr accordingly to the available cores on the host. Signed-off-by: Kefu Chai <[email protected]>
cybozu · Mar 19, 2021 · e8fd4b3 · e8fd4b3
1 parent da7a6fa
commit e8fd4b3
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/run-make-check.sh b/run-make-check.sh
@@ -32,7 +32,11 @@ function run() {
 
     # increase the aio-max-nr, which is by default 65536. we could reach this
     # limit while running seastar tests and bluestore tests.
-    $DRY_RUN sudo /sbin/sysctl -q -w fs.aio-max-nr=$((65536 * 16))
+    local m=16
+    if [ $(nproc) -gt $m ]; then
+        m=$(nproc)
+    fi
+    $DRY_RUN sudo /sbin/sysctl -q -w fs.aio-max-nr=$((65536 * $(nproc)))
 
     CHECK_MAKEOPTS=${CHECK_MAKEOPTS:-$DEFAULT_MAKEOPTS}
     if ! $DRY_RUN ctest $CHECK_MAKEOPTS --output-on-failure; then