Changes between Version 2 and Version 3 of linux/jupyter

Timestamp:

2016/08/17 16:42:59 (9 years ago)

Author:

yuna

Comment:

--

linux/jupyter

@@ -1 @@
-# Jupyter Notebookメモ
+= Jupyter Notebookメモ
 
 CentOS7へのインストール。折角だからPython3系を利用してみる。
@@ -22 +22 @@
 c.NotebookApp.port = 8888
 }}}
+
+== sarを表示
+
+{{{
+$ sar -A -o test.sar 1 10
+}}}
+
+などで取得したsarを表示するサンプルは、こんな感じ。
+
+
+{{{
+%matplotlib inline
+
+import subprocess
+from subprocess import Popen,PIPE
+from datetime import datetime
+
+import matplotlib.pyplot as plt
+from matplotlib.font_manager import FontProperties
+import matplotlib.dates as mdates
+
+def readSarCPU(f):
+    args = ['/bin/bash','-c', "sadf -T --  -C " + f + " |awk '{print $3,$4,$6,$7}'"]
+    p = Popen(args,stdout=PIPE,stderr=PIPE)
+    out,err = p.communicate()
+    cpu = {'%user': [], '%nice': [], '%system': [], '%iowait': [], '%steal': [], '%idle': []}
+    timestamp = []
+    x = 0
+    prev = ""
+    for l in out.split('\n'):
+        if l == "":
+            break;
+        r = l.split(" ")
+
+        if prev != r[1]:
+            timestamp.append(datetime.strptime(r[0]+" "+r[1], '%Y-%m-%d %H:%M:%S'))
+            prev = r[1]
+            x = x+1
+        cpu[r[2]].append(float(r[3]))
+    return (timestamp, cpu)
+
+
+
+def plot(x, data, title="",xlabel="",ylabel=""): 
+
+    fp = FontProperties(fname='/usr/share/fonts/ipa-gothic/ipag.ttf')
+    
+    if title!="":
+        plt.title(title, fontproperties=fp)
+    if xlabel!="":
+        plt.xlabel(xlabel,fontproperties=fp)
+    if ylabel!="":
+        plt.ylabel(ylabel,fontproperties=fp)
+
+    plt.xticks(rotation=30)
+    xfmt = mdates.DateFormatter('%m/%d %H:%M:%S')
+    ax = plt.gca()
+    ax.xaxis.set_major_formatter(xfmt)
+
+    for k in cpu.keys():
+        plt.plot(x,cpu[k], label=k)
+
+    plt.legend(prop=fp,bbox_to_anchor=(1.05, 1), loc=2, borderaxespad=0.)
+    plt.show()
+
+timestamp, cpu = readSarCPU("test.sar")
+plot(x=timestamp, data=cpu,ylabel=u"%",xlabel=u"time")
+}}}