Author: allanjude
Date: Thu Jun 15 17:43:40 2017
New Revision: 319982
URL: https://svnweb.freebsd.org/changeset/base/319982
Log:
MFC: r319866, r319867
top: Change the way the ZFS ARC compression ratio is calculated
remove overhead statistics, already included in other counters
Approved by: re (gjb)
Modified:
stable/11/usr.bin/top/machine.c
stable/11/usr.bin/top/top.local.1
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/usr.bin/top/machine.c
==============================================================================
--- stable/11/usr.bin/top/machine.c Thu Jun 15 17:06:04 2017
(r319981)
+++ stable/11/usr.bin/top/machine.c Thu Jun 15 17:43:40 2017
(r319982)
@@ -188,9 +188,9 @@ char *arcnames[] = {
NULL
};
-int carc_stats[5];
+int carc_stats[4];
char *carcnames[] = {
- "K Compressed, ", "K Uncompressed, ", ":1 Ratio, ", "K Overhead",
+ "K Compressed, ", "K Uncompressed, ", ":1 Ratio, ",
NULL
};
@@ -580,11 +580,9 @@ get_system_info(struct system_info *si)
if (carc_enabled) {
GETSYSCTL("kstat.zfs.misc.arcstats.compressed_size", arc_stat);
carc_stats[0] = arc_stat >> 10;
+ carc_stats[2] = arc_stat >> 10; /* For ratio */
GETSYSCTL("kstat.zfs.misc.arcstats.uncompressed_size",
arc_stat);
carc_stats[1] = arc_stat >> 10;
- carc_stats[2] = arc_stats[0]; /* ARC Total */
- GETSYSCTL("kstat.zfs.misc.arcstats.overhead_size", arc_stat);
- carc_stats[3] = arc_stat >> 10;
si->carc = carc_stats;
}
Modified: stable/11/usr.bin/top/top.local.1
==============================================================================
--- stable/11/usr.bin/top/top.local.1 Thu Jun 15 17:06:04 2017
(r319981)
+++ stable/11/usr.bin/top/top.local.1 Thu Jun 15 17:43:40 2017
(r319982)
@@ -65,10 +65,7 @@ bytes of memory used by ARC caches
bytes of data stored in ARC caches before compression
.TP
.B Ratio:
-ratio of uncompressed data to total ARC size
-.TP
-.B Overhead:
-amount of overhead from ARC compression
+compression ratio of data cached in the ARC
.SS Swap Stats
.TP
.B Total:
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