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top: document a debugging script

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2011-01-25 01:57:31 +01:00
parent 975c714183
commit 444ff284c4
1 changed files with 11 additions and 2 deletions
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13
procps/top.c
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@ -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