speed up render from 7.8 secs to 7.5

TODO

@@ -1,8 +1,9 @@
 ** Bugs:
-	+ get the -real- CPU counts right [!] ... uh huh ?
-
-	+ Ensure that we merge up a sub-process' CPU usage into the
-	  parent process when we hide very short running processes.
+	+ merge processes for CPU counts:
+		+ if the ns count is -identical- (and non-zero) it is the same process
+			+ need to back-merge somehow ?
+				:-)
+			+ or can we do this by pid ? [ prolly ! ]
 
 	+ fix for profiling a running system ... [ get the origin right ! ]
 

pybootchartgui/parsing.py

@@ -218,10 +218,10 @@ def _parse_proc_disk_stat_log(file, numCpu):
 	not sda1, sda2 etc. The format of relevant lines should be:
 	{major minor name rio rmerge rsect ruse wio wmerge wsect wuse running use aveq}
 	"""
-	DISK_REGEX = 'hd.$|sd.$|vd.$'
+	disk_regex_re = re.compile ('[hsv]d.$')
 
 	def is_relevant_line(linetokens):
-		return len(linetokens) == 14 and re.match(DISK_REGEX, linetokens[2])
+		return len(linetokens) == 14 and disk_regex_re.match(linetokens[2])
 
 	disk_stat_samples = []