From: Ben Gras <ben@minix3.org>
Date: Wed, 1 Jun 2005 09:40:27 +0000 (+0000)
Subject: Able to dump lock()/unlock() timing data
X-Git-Tag: v3.1.0~784
X-Git-Url: http://zhaoyanbai.com/repos/%22/xml/v3/status/static/gitweb.js?a=commitdiff_plain;h=bd12703b7605724094263e468f89e16c248851b0;p=minix.git

Able to dump lock()/unlock() timing data
---

diff --git a/servers/is/dmp.c b/servers/is/dmp.c
index 9defd5c45..58d71f07b 100644
--- a/servers/is/dmp.c
+++ b/servers/is/dmp.c
@@ -15,6 +15,7 @@
 #include <timers.h>
 #include <string.h>
 #include <ibm/interrupt.h>
+#include <minix/config.h>
 #include "../../kernel/const.h"
 #include "../../kernel/type.h"
 #include "../../kernel/proc.h"
@@ -37,6 +38,9 @@ FORWARD _PROTOTYPE( void sched_dmp, (void)			);
 FORWARD _PROTOTYPE( void monparams_dmp, (void)			);
 FORWARD _PROTOTYPE( void kenv_dmp, (void)			);
 FORWARD _PROTOTYPE( void memchunks_dmp, (void)			);
+#if ENABLE_LOCK_TIMING
+FORWARD _PROTOTYPE( void timing_dmp, (void)			);
+#endif
 
 /* Some global data that is shared among several dumping procedures. 
  * Note that the process table copy has the same name as in the kernel
@@ -65,6 +69,9 @@ PUBLIC int do_fkey_pressed(message *m)
             case  F5:	monparams_dmp();	break;
             case  F6:	irqtab_dmp();		break;
             case  F7:	kmessages_dmp();	break;
+#if ENABLE_LOCK_TIMING
+            case  F8:	timing_dmp();		break;
+#endif
             case  F9:	diagnostics_dmp();	break;
             case F10:	kenv_dmp();		break;
             case F11:	memchunks_dmp();	break;
@@ -108,6 +115,43 @@ PRIVATE void diagnostics_dmp()
   printf(print_buf);		/* print the messages */
 }
 
+#if ENABLE_LOCK_TIMING
+/*===========================================================================*
+ *				timing_dmp				     *
+ *===========================================================================*/
+PRIVATE void timing_dmp()
+{
+  static struct lock_timedata timingdata[TIMING_CATEGORIES];
+  int r, c, f, skipped = 0, printed = 0, maxlines = 23, x = 0;
+  static int offsetlines = 0;
+
+  if ((r = sys_getlocktimings(timingdata)) != OK) {
+      report("warning: couldn't get copy of lock timings", r);
+      return;
+  } 
+
+  for(c = 0; c < TIMING_CATEGORIES; c++) {
+	int b;
+	if(!timingdata[c].lock_timings_range[0] || !timingdata[c].binsize)
+		continue;
+	x = printf("%-*s: misses %lu, resets %lu, measurements %lu: ",
+	TIMING_NAME, timingdata[c].names,
+		timingdata[c].misses,
+		timingdata[c].resets,
+		timingdata[c].measurements);
+	for(b = 0; b < TIMING_POINTS; b++) {
+		int w;
+		if(!timingdata[c].lock_timings[b])
+			continue;
+		x += (w = printf(" %5d: %5d", timingdata[c].lock_timings_range[0] +
+			b*timingdata[c].binsize,
+			timingdata[c].lock_timings[b]));
+	 	if(x + w >= 80) { printf("\n"); x = 0; }
+	}
+  	if(x > 0) printf("\n");
+  }
+}
+#endif
 
 /*===========================================================================*
  *				kmessages_dmp				     *
@@ -139,7 +183,7 @@ PRIVATE void kmessages_dmp()
   }
   print_buf[r] = 0;		/* make sure it terminates */
   printf("Dump of all messages generated by the kernel.\n\n"); 
-  printf(print_buf);		/* print the messages */
+  printf("%s", print_buf);		/* print the messages */
 }