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Support ZFS ARC stats on FreeBSD

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New meter displays same ARC stats as FreeBSD top(1).
Can be extended to other platforms that support ZFS.

Pulling kstat.zfs.misc.arcstats.c_max as the meter
total, so the meter has a meaningful value to work
up to.

The Text meter displays, first, the maximum
ARC size (Meter.total), then second, the total
ARC used, using the difference between Meter.maxItems
and Meter.curItems to "hide" the used value from the
Bar and Graph drawing functions by using an index
in Meter.values[] that is beyond curItems - 1, but
less than maxItems - 1.
This commit is contained in:
Ross Williams
2019-07-06 04:27:49 +00:00
parent 92258e99e6
commit a93edde1a2
9 changed files with 220 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
CRT.c
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@ -128,6 +128,11 @@ typedef enum ColorElements_ {
CPU_SOFTIRQ,
CPU_STEAL,
CPU_GUEST,
ZFS_MFU,
ZFS_MRU,
ZFS_ANON,
ZFS_HEADER,
ZFS_OTHER,
LAST_COLORELEMENT
} ColorElements;
@ -232,6 +237,11 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
[CPU_SOFTIRQ] = ColorPair(Magenta,Black),
[CPU_STEAL] = ColorPair(Cyan,Black),
[CPU_GUEST] = ColorPair(Cyan,Black),
[ZFS_MFU] = ColorPair(Blue,Black),
[ZFS_MRU] = ColorPair(Yellow,Black),
[ZFS_ANON] = ColorPair(Magenta,Black),
[ZFS_HEADER] = ColorPair(Cyan,Black),
[ZFS_OTHER] = ColorPair(Magenta,Black),
},
[COLORSCHEME_MONOCHROME] = {
[RESET_COLOR] = A_NORMAL,
@ -291,6 +301,11 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
[CPU_SOFTIRQ] = A_BOLD,
[CPU_STEAL] = A_REVERSE,
[CPU_GUEST] = A_REVERSE,
[ZFS_MFU] = A_NORMAL,
[ZFS_MRU] = A_NORMAL,
[ZFS_ANON] = A_DIM,
[ZFS_HEADER] = A_BOLD,
[ZFS_OTHER] = A_DIM,
},
[COLORSCHEME_BLACKONWHITE] = {
[RESET_COLOR] = ColorPair(Black,White),
@ -350,6 +365,11 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
[CPU_SOFTIRQ] = ColorPair(Blue,White),
[CPU_STEAL] = ColorPair(Cyan,White),
[CPU_GUEST] = ColorPair(Cyan,White),
[ZFS_MFU] = ColorPair(Cyan,White),
[ZFS_MRU] = ColorPair(Yellow,White),
[ZFS_ANON] = ColorPair(Magenta,White),
[ZFS_HEADER] = ColorPair(Yellow,White),
[ZFS_OTHER] = ColorPair(Magenta,White),
},
[COLORSCHEME_LIGHTTERMINAL] = {
[RESET_COLOR] = ColorPair(Black,Black),
@ -409,6 +429,11 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
[CPU_SOFTIRQ] = ColorPair(Blue,Black),
[CPU_STEAL] = ColorPair(Black,Black),
[CPU_GUEST] = ColorPair(Black,Black),
[ZFS_MFU] = ColorPair(Cyan,Black),
[ZFS_MRU] = ColorPair(Yellow,Black),
[ZFS_ANON] = A_BOLD | ColorPair(Magenta,Black),
[ZFS_HEADER] = ColorPair(Black,Black),
[ZFS_OTHER] = A_BOLD | ColorPair(Magenta,Black),
},
[COLORSCHEME_MIDNIGHT] = {
[RESET_COLOR] = ColorPair(White,Blue),
@ -468,6 +493,11 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
[CPU_SOFTIRQ] = ColorPair(Black,Blue),
[CPU_STEAL] = ColorPair(White,Blue),
[CPU_GUEST] = ColorPair(White,Blue),
[ZFS_MFU] = A_BOLD | ColorPair(White,Blue),
[ZFS_MRU] = A_BOLD | ColorPair(Yellow,Blue),
[ZFS_ANON] = A_BOLD | ColorPair(Magenta,Blue),
[ZFS_HEADER] = A_BOLD | ColorPair(Yellow,Blue),
[ZFS_OTHER] = A_BOLD | ColorPair(Magenta,Blue),
},
[COLORSCHEME_BLACKNIGHT] = {
[RESET_COLOR] = ColorPair(Cyan,Black),
@ -527,6 +557,11 @@ int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
[CPU_SOFTIRQ] = ColorPair(Blue,Black),
[CPU_STEAL] = ColorPair(Cyan,Black),
[CPU_GUEST] = ColorPair(Cyan,Black),
[ZFS_MFU] = ColorPair(Blue,Black),
[ZFS_MRU] = ColorPair(Yellow,Black),
[ZFS_ANON] = ColorPair(Magenta,Black),
[ZFS_HEADER] = ColorPair(Yellow,Black),
[ZFS_OTHER] = ColorPair(Magenta,Black),
},
[COLORSCHEME_BROKENGRAY] = { 0 } // dynamically generated.
};