From 488188f4f79de0fec0570bf2dfad5ffb7a5b2eaf Mon Sep 17 00:00:00 2001
From: Fabian Keil <fk@fabiankeil.de>
Date: Sun, 20 Sep 2015 19:53:09 +0200
Subject: [PATCH 220/257] top: Show ZFS ARC target size

Obtained from: ElectroBSD
---
 usr.bin/top/machine.c   |  6 ++++--
 usr.bin/top/top.local.1 | 12 +++++++++---
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/usr.bin/top/machine.c b/usr.bin/top/machine.c
index 492a62ae227b..597d41fd801d 100644
--- a/usr.bin/top/machine.c
+++ b/usr.bin/top/machine.c
@@ -182,9 +182,9 @@ char *memorynames[] = {
 	"K Free", NULL
 };
 
-int arc_stats[7];
+int arc_stats[8];
 char *arcnames[] = {
-	"K Total, ", "K MFU, ", "K MRU, ", "K Anon, ", "K Header, ", "K Other",
+	"K Total, ", "K MFU, ", "K MRU, ", "K Anon, ", "K Header, ", "K Other, ", "K Target",
 	NULL
 };
 
@@ -557,6 +557,8 @@ get_system_info(struct system_info *si)
 		arc_stats[4] = arc_stat + arc_stat2 >> 10;
 		GETSYSCTL("kstat.zfs.misc.arcstats.other_size", arc_stat);
 		arc_stats[5] = arc_stat >> 10;
+		GETSYSCTL("kstat.zfs.misc.arcstats.c", arc_stat);
+		arc_stats[6] = arc_stat >> 10;
 		si->arc = arc_stats;
 	}
 
diff --git a/usr.bin/top/top.local.1 b/usr.bin/top/top.local.1
index 864ab8d65c4b..951754c83bbe 100644
--- a/usr.bin/top/top.local.1
+++ b/usr.bin/top/top.local.1
@@ -2,9 +2,9 @@
 .SH "FreeBSD NOTES"
 
 .SH DESCRIPTION OF MEMORY
-Mem: 9220K Active, 1M Inact, 3284K Wired, 1M Cache, 2M Buf, 1320K Free
-ARC: 2048K Total, 342K MRU, 760K MFU, 272K Anon, 232K Header, 442K Other
-Swap: 91M Total, 79M Free, 13% Inuse, 80K In, 104K Out
+Mem: 387M Active, 499M Inact, 945M Wired, 8K Cache, 5528K Buf, 83M Free
+ARC: 349M Total, 174M MFU, 94M MRU, 2192K Anon, 6488K Header, 73M Other, 350M Target
+Swap: 2048M Total, 124M Used, 1924M Free, 6% Inuse
 .TP
 .B K:
 Kilobyte
@@ -57,6 +57,12 @@ number of ARC bytes holding headers
 .TP
 .B Other
 miscellaneous ARC bytes
+.TP
+.B Target
+ARC target size, that is the total amount of memory
+the ARC considers usable for itself. If it's not equal
+to the total size, the ARC will shrink or grow to reach
+the target.
 .SS Swap Stats
 .TP
 .B Total:
-- 
2.11.0