From: Michael Vrable <mvrable@cs.ucsd.edu>
Date: Fri, 18 Mar 2011 09:24:08 +0000 (-0700)
Subject: Add four-way latency comparison (NFS and CIFS)
X-Git-Url: https://git.vrable.net/?a=commitdiff_plain;h=d7bb88418069c88c1fd454624530cc63e96ede1d;p=bluesky.git

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
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
--- 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
--- 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)