Add four-way latency comparison (NFS and CIFS)

diff --git a/results/20110317/read-latencies.data b/results/20110317/read-latencies.data
new file mode 100644 (file)
index 0000000..57fde23
--- /dev/null
+++ b/results/20110317/read-latencies.data
@@ -0,0 +1,33 @@
+# Four-way comparison of read latencies
+#
+# First column is attempted ops per second, then:
+#   Native NFS
+#   Bluesky NFS
+#   Native Samba
+#   Bluesky CIFS
+50     0.6     0.6     1.12    0.46
+100    2.41    7.59    2.01    7.3
+150    2.91    6.26    2.53    7.33
+200    3.23    8.41    2.96    10.09
+250    4.4     14.58   3.54    13.12
+300    4.28    13.14   3.55    11.38
+350    4.89    12.05   5.39    13.22
+400    6.27    13.81   4.7     14.88
+450    8.11    15.96   4.55    14.47
+500    10.22   21.02   5.32    16.12
+550    12.07   22.01   6.73    18.46
+600    13.39   25.23   7.89    17.12
+650    18.83   27.13   9.22    20.57
+700    18.22   33.35   11.29   24.76
+750    18.31   34.67   10.85   25.48
+800    19.03   37.45   11.14
+850    20.26   37.22   13.21
+900    24.35   41.63   10.58
+950    24.05   45.03   11.74
+1000   22.29   49.88   16.19
+1050   27.05   51.77
+1100   24.07   59.15
+1150   24.67   57.78
+1200   26.07   60.72
+1250   28.53   67.99
+

diff --git a/results/figures/specsfs.gnuplot b/results/figures/specsfs.gnuplot
index debc5d3..223c52f 100644 (file)
--- a/results/figures/specsfs.gnuplot
+++ b/results/figures/specsfs.gnuplot
@@ -76,3 +76,18 @@ set output "spec-cifs2.eps"
 set ylabel "Operation Latency (ms)"
 plot "../20110227a/sfssum.20110227-samba" using 1:3 with linespoints title "Samba", \
      "../20110317/sfssum.20110317-cifs" using 1:3 with linespoints title "BlueSky"
+
+# Four-way comparison of read latencies among native/BlueSky with NFS/CIFS
+XMAX=750
+set xrange [0:XMAX]
+set x2range [0:XMAX*OPS_WSS_SCALE]
+set xtics nomirror
+set x2tics auto
+set yrange [*:*]
+
+set output "spec-read-latencies.eps"
+set ylabel "Operation Latency (ms)"
+plot "../20110317/read-latencies.data" using 1:2 with linespoints title "Native NFS", \
+     "../20110317/read-latencies.data" using 1:3 with linespoints title "BlueSky NFS", \
+     "../20110317/read-latencies.data" using 1:4 with linespoints title "Samba (CIFS)", \
+     "../20110317/read-latencies.data" using 1:5 with linespoints title "BlueSky CIFS"

diff --git a/results/parse-sfsres.py b/results/parse-sfsres.py
index 34c9a09..8d84ac1 100755 (executable)
--- a/results/parse-sfsres.py
+++ b/results/parse-sfsres.py
@@ -28,6 +28,7 @@ def parse_date(datestr):
     return int(d.strip())
 
 def find_stats(statsdata, timestamp):
+    if statsdata is None: return (0, [0] * len(STATSDATA))
     for s in statsdata:
         if s[0] > timestamp: return (s[0], s[1:])
     return (statsdata[-1][0], statsdata[-1][1:])
@@ -121,6 +122,6 @@ if __name__ == '__main__':
         input_stats = open(sys.argv[2])
         statsdata = parse_stats(input_stats)
     except:
-        statsdata = []
+        statsdata = None
 
     parse_sfsres(input_sfsres, statsdata)