LU-6283 ptlrpc: Implement NRS Delay Policy

[fs/lustre-release.git] / lustre / tests / sanityn.sh

diff --git a/lustre/tests/sanityn.sh b/lustre/tests/sanityn.sh
old mode 100644 (file)
new mode 100755 (executable)
index e607822..58fbd5a
--- a/lustre/tests/sanityn.sh
+++ b/lustre/tests/sanityn.sh
@@ -3484,6 +3484,58 @@ test_77k() {
 }
 run_test 77k "check the extended TBF policy with NID/JobID/OPCode expression"
 
+test_77l() {
+       if [ $(lustre_version_code ost1) -lt $(version_code 2.9.54) ]; then
+               skip "Need OST version at least 2.9.54"
+               return 0
+       fi
+
+       local dir=$DIR/$tdir
+
+       mkdir $dir || error "mkdir $dir failed"
+       $LFS setstripe -c $OSTCOUNT $dir || error "setstripe to $dir failed"
+       chmod 777 $dir
+
+       local nodes=$(comma_list $(osts_nodes))
+       do_nodes $nodes lctl set_param ost.OSS.ost_io.nrs_policies=delay \
+                                      ost.OSS.ost_io.nrs_delay_min=4 \
+                                      ost.OSS.ost_io.nrs_delay_max=4 \
+                                      ost.OSS.ost_io.nrs_delay_pct=100
+       [ $? -ne 0 ] && error "Failed to set delay policy"
+
+       local start=$SECONDS
+       do_nodes "${SINGLECLIENT:-$HOSTNAME}" "$RUNAS" \
+                dd if=/dev/zero of="$dir/nrs_delay_$HOSTNAME" bs=1M count=1 \
+                  oflag=direct conv=fdatasync ||
+               { do_nodes $nodes lctl set_param ost.OSS.ost_io.nrs_policies="fifo";
+                 error "dd on client failed (1)"; }
+       local elapsed=$((SECONDS - start))
+
+       # NRS delay doesn't do sub-second timing, so a request enqueued at
+       # 0.9 seconds can be dequeued at 4.0
+       [ $elapsed -lt 3 ] &&
+               { do_nodes $nodes lctl set_param ost.OSS.ost_io.nrs_policies="fifo";
+                 error "Single 1M write should take at least 3 seconds"; }
+
+       start=$SECONDS
+       do_nodes "${SINGLECLIENT:-$HOSTNAME}" "$RUNAS" \
+                dd if=/dev/zero of="$dir/nrs_delay_$HOSTNAME" bs=1M count=10 \
+                  oflag=direct conv=fdatasync ||
+               { do_nodes $nodes lctl set_param ost.OSS.ost_io.nrs_policies="fifo";
+                 error "dd on client failed (2)"; }
+       elapsed=$((SECONDS - start))
+
+       [ $elapsed -lt 30 ] &&
+               { do_nodes $nodes lctl set_param ost.OSS.ost_io.nrs_policies="fifo";
+                 error "Ten 1M writes should take at least 30 seconds"; }
+
+       do_nodes $nodes lctl set_param ost.OSS.ost_io.nrs_policies="fifo"
+       [ $? -ne 0 ] && error "failed to set policy back to fifo"
+
+       return 0
+}
+run_test 77l "check NRS Delay slows write RPC processing"
+
 test_78() { #LU-6673
        local server_version=$(lustre_version_code ost1)
        [[ $server_version -ge $(version_code 2.7.58) ]] ||