Report disk IO in resiliency gate

This is to help monitor disk performance in the gate.

Change-Id: I9db1c35ac6df8200deefde04d54144396e0218be

.gitignore

@@ -23,3 +23,6 @@ __pycache__
 /docs/*/_static/
 /AUTHORS
 /ChangeLog
+
+# Additional gate artifacts
+/.fiotest

tools/g2/manifests/resiliency.json

@@ -4,6 +4,10 @@
     "promenade/schemas"
   ],
   "stages": [
+    {
+      "name": "Report Disk IO",
+      "script": "report-disk-io.sh"
+    },
     {
       "name": "Gate Setup",
       "script": "gate-setup.sh"

tools/g2/stages/report-disk-io.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -eu
+
+source "${GATE_UTILS}"
+
+log Testing disk IO
+
+fio \
+    --randrepeat=1 \
+    --ioengine=libaio \
+    --direct=1 \
+    --gtod_reduce=1 \
+    --name=test \
+    --filename=.fiotest \
+    --bs=4k \
+    --iodepth=64 \
+    --size=1G \
+    --readwrite=randrw \
+    --rwmixread=50

tools/setup_gate.sh

@@ -22,6 +22,7 @@ sudo apt-get update -qq
 sudo apt-get install -q -y --no-install-recommends \
     curl \
     docker.io \
+    fio \
     genisoimage \
     jq \
     libstring-shellquote-perl \