[git commit master 1/1] top: document a debugging script

[Denys Vlasenko]

commit: http://git.busybox.net/busybox/commit/?id=444ff284c4097081108e0eded4711247aacda740
branch: http://git.busybox.net/busybox/commit/?id=refs/heads/master

Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
 procps/top.c |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/procps/top.c b/procps/top.c
index 1eb33dc..d7cc9af 100644
--- a/procps/top.c
+++ b/procps/top.c
@@ -30,6 +30,15 @@
  *
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
+/* Howto snapshot /proc for debugging top problems:
+ * for f in /proc/[0-9]*""/stat; do
+ *         n=${f#/proc/}
+ *         n=${n%/stat}_stat
+ *         cp $f $n
+ * done
+ * cp /proc/stat /proc/meminfo .
+ * top -bn1 >top.out
+ */
 
 #include "libbb.h"
 
@@ -546,7 +555,7 @@ static NOINLINE void display_process_list(int lines_rem, int scr_width)
 		pmem_scale /= 4;
 		pmem_shift -= 2;
 	}
-	pmem_half = (1U << pmem_shift) / (ENABLE_FEATURE_TOP_DECIMALS? 20 : 2);
+	pmem_half = (1U << pmem_shift) / (ENABLE_FEATURE_TOP_DECIMALS ? 20 : 2);
 #if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE
 	busy_jifs = cur_jif.busy - prev_jif.busy;
 	/* This happens if there were lots of short-lived processes
@@ -577,7 +586,7 @@ static NOINLINE void display_process_list(int lines_rem, int scr_width)
 		pcpu_scale /= 4;
 		pcpu_shift -= 2;
 	}
-	pcpu_half = (1U << pcpu_shift) / (ENABLE_FEATURE_TOP_DECIMALS? 20 : 2);
+	pcpu_half = (1U << pcpu_shift) / (ENABLE_FEATURE_TOP_DECIMALS ? 20 : 2);
 	/* printf(" pmem_scale=%u pcpu_scale=%u ", pmem_scale, pcpu_scale); */
 #endif
 
-- 
1.7.3.4