Difference between revisions of "Development Team/Profiling"

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===Memory===
 
===Memory===
 
====ps_mem====
 
====ps_mem====
 +
Try to determine how much RAM is currently being used per program.
 +
The shared RAM is problematic to calculate, and this script automatically
 +
selects the most accurate method available for your kernel.
 +
 
:original script at http://www.pixelbeat.org/scripts/ps_mem.py
 
:original script at http://www.pixelbeat.org/scripts/ps_mem.py
−
:patched version at http://dev.laptop.org/~rlucchese/scripts/ps_mem
+
The following patch makes the script output the processes pids and cmd-lines instead of their names when possible.
 +
:__patched__ version at http://dev.laptop.org/~rlucchese/utils/ps_mem.py
 +
 
 
:patch:
 
:patch:
 
<pre>
 
<pre>
−
--- ps_mem.orig 2008-07-22 08:00:58.000000000 +0200
+
--- ps_mem.py.orig 2008-08-29 09:30:29.000000000 +0200
−
+++ ps_mem 2008-08-25 10:01:35.000000000 +0200
+
+++ ps_mem 2008-08-29 09:43:49.000000000 +0200
−
@@ -117,14 +117,16 @@
+
@@ -117,17 +117,23 @@
 
     return (Private, Shared)
 
     return (Private, Shared)
 
   
 
   
Line 21: Line 27:
 
-        #584.0 KiB +  1.0 MiB =  1.6 MiB    mozilla-thunder (exe -> bash)
 
-        #584.0 KiB +  1.0 MiB =  1.6 MiB    mozilla-thunder (exe -> bash)
 
-        # 56.0 MiB +  22.2 MiB =  78.2 MiB    mozilla-thunderbird-bin
 
-        # 56.0 MiB +  22.2 MiB =  78.2 MiB    mozilla-thunderbird-bin
−
+    cmd = file("/proc/%d/cmdline" % pid).readline()[:60]
+
+    cmd = file("/proc/%d/cmdline" % pid).readline()
−
+    if not len(cmd):
+
+    if len(cmd):
 +
+      # cmdline has a bogus format
 +
+      cmd_temp = ''
 +
+      for i in range(0,len(cmd) -1):
 +
+          if ord(cmd[i])<ord(' ') or ord(cmd[i])>ord('~'):
 +
+              cmd_temp += ' '
 +
+          else:
 +
+              cmd_temp += cmd[i]
 +
+
 +
+      cmd = cmd_temp
 +
+    else:
 
+        cmd = file("/proc/%d/status" % pid).readline()[6:-1]
 
+        cmd = file("/proc/%d/status" % pid).readline()[6:-1]
−
+        exe = os.path.basename(os.path.realpath("/proc/%d/exe" % pid))
 
−
+        if exe.startswith(cmd):
 
−
+            cmd=exe #show non truncated version
 
−
+            #Note because we show the non truncated name
 
−
+            #one can have separated programs as follows:
 
−
+            #584.0 KiB +  1.0 MiB =  1.6 MiB    mozilla-thunder (exe -> bash)
 
−
+            # 56.0 MiB +  22.2 MiB =  78.2 MiB    mozilla-thunderbird-bin
 
 
     return cmd
 
     return cmd
 
   
 
   
 
  cmds={}
 
  cmds={}
 +
+pids={}
 +
shareds={}
 +
count={}
 +
for pid in os.listdir("/proc/"):
 +
@@ -155,10 +161,8 @@
 +
    else:
 +
        shareds[cmd]=shared
 +
    cmds[cmd]=cmds.setdefault(cmd,0)+private
 +
-    if count.has_key(cmd):
 +
-      count[cmd] += 1
 +
-    else:
 +
-      count[cmd] = 1
 +
+
 +
+    pids[cmd] = pid
 +
 +
#Add shared mem for each program
 +
total=0
 +
@@ -185,16 +189,16 @@
 +
    else:
 +
        return cmd
 +
 +
-print " Private  +  Shared  =  RAM used\tProgram \n"
 +
+print " Private  +  Shared  =  RAM used\tPID\tProgram \n"
 +
for cmd in sort_list:
 +
-    print "%8sB + %8sB = %8sB\t%s" % (human(cmd[1]-shareds[cmd[0]]),
 +
+    print "%8sB + %8sB = %8sB\t%d\t%s" % (human(cmd[1]-shareds[cmd[0]]),
 +
                                      human(shareds[cmd[0]]), human(cmd[1]),
 +
-                                      cmd_with_count(cmd[0], count[cmd[0]]))
 +
+                                      pids[cmd[0]], cmd[0])
 +
if have_pss:
 +
    print "-" * 33
 +
    print " " * 24 + "%8sB" % human(total)
 +
    print "=" * 33
 +
-print "\n Private  +  Shared  =  RAM used\tProgram \n"
 +
+print " Private  +  Shared  =  RAM used\tPID\tProgram \n"
 +
 +
#Warn of possible inaccuracies
 +
#2 = accurate & can total
 
</pre>
 
</pre>
  

Latest revision as of 20:33, 23 February 2010


Memory

ps_mem

Try to determine how much RAM is currently being used per program. The shared RAM is problematic to calculate, and this script automatically selects the most accurate method available for your kernel.

original script at http://www.pixelbeat.org/scripts/ps_mem.py

The following patch makes the script output the processes pids and cmd-lines instead of their names when possible.

__patched__ version at http://dev.laptop.org/~rlucchese/utils/ps_mem.py
patch:
--- ps_mem.py.orig	2008-08-29 09:30:29.000000000 +0200
+++ ps_mem	2008-08-29 09:43:49.000000000 +0200
@@ -117,17 +117,23 @@
     return (Private, Shared)
 
 def getCmdName(pid):
-    cmd = file("/proc/%d/status" % pid).readline()[6:-1]
-    exe = os.path.basename(os.path.realpath("/proc/%d/exe" % pid))
-    if exe.startswith(cmd):
-        cmd=exe #show non truncated version
-        #Note because we show the non truncated name
-        #one can have separated programs as follows:
-        #584.0 KiB +   1.0 MiB =   1.6 MiB    mozilla-thunder (exe -> bash)
-        # 56.0 MiB +  22.2 MiB =  78.2 MiB    mozilla-thunderbird-bin
+    cmd = file("/proc/%d/cmdline" % pid).readline()
+    if len(cmd):
+       # cmdline has a bogus format
+       cmd_temp = ''
+       for i in range(0,len(cmd) -1):
+           if ord(cmd[i])<ord(' ') or ord(cmd[i])>ord('~'):
+               cmd_temp += ' '
+           else:
+               cmd_temp += cmd[i]
+
+       cmd = cmd_temp
+    else:
+        cmd = file("/proc/%d/status" % pid).readline()[6:-1]
     return cmd
 
 cmds={}
+pids={}
 shareds={}
 count={}
 for pid in os.listdir("/proc/"):
@@ -155,10 +161,8 @@
     else:
         shareds[cmd]=shared
     cmds[cmd]=cmds.setdefault(cmd,0)+private
-    if count.has_key(cmd):
-       count[cmd] += 1
-    else:
-       count[cmd] = 1
+
+    pids[cmd] = pid
 
 #Add shared mem for each program
 total=0
@@ -185,16 +189,16 @@
     else:
        return cmd
 
-print " Private  +   Shared  =  RAM used\tProgram \n"
+print " Private  +   Shared  =  RAM used\tPID\tProgram \n"
 for cmd in sort_list:
-    print "%8sB + %8sB = %8sB\t%s" % (human(cmd[1]-shareds[cmd[0]]),
+    print "%8sB + %8sB = %8sB\t%d\t%s" % (human(cmd[1]-shareds[cmd[0]]),
                                       human(shareds[cmd[0]]), human(cmd[1]),
-                                      cmd_with_count(cmd[0], count[cmd[0]]))
+                                      pids[cmd[0]], cmd[0])
 if have_pss:
     print "-" * 33
     print " " * 24 + "%8sB" % human(total)
     print "=" * 33
-print "\n Private  +   Shared  =  RAM used\tProgram \n"
+print " Private  +   Shared  =  RAM used\tPID\tProgram \n"
 
 #Warn of possible inaccuracies
 #2 = accurate & can total
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