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| author | Ivan Shapovalov <intelfx@intelfx.name> | 2022-12-27 04:57:52 +0400 |
|---|---|---|
| committer | BenBE <BenBE@geshi.org> | 2023-04-23 16:00:17 +0200 |
| commit | b29b33ebb9ae80a95e7d09eb537e0fccc5043d68 (patch) | |
| tree | bbd2c2642784757885d150ba0c598877f6f3e9d7 /SwapMeter.c | |
| parent | b2ada278403e643a3bc339783740f262b7879803 (diff) | |
{Memory,Swap}Meter: add "compressed memory" metrics
For now, the semantics are mostly fit for Linux zswap subsystem. For
instance, we add the third swap usage metric that indicates the amount
of memory that is accounted to swap but in fact stored elsewhere. This
exactly matches the definition of frontswap/zswap, and is probably of
little use to all other platforms.
Diffstat (limited to 'SwapMeter.c')
| -rw-r--r-- | SwapMeter.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/SwapMeter.c b/SwapMeter.c index fea8e88b..84e58a26 100644 --- a/SwapMeter.c +++ b/SwapMeter.c @@ -20,7 +20,8 @@ in the source distribution for its full text. static const int SwapMeter_attributes[] = { SWAP, - SWAP_CACHE + SWAP_CACHE, + SWAP_FRONTSWAP, }; static void SwapMeter_updateValues(Meter* this) { @@ -29,6 +30,7 @@ static void SwapMeter_updateValues(Meter* this) { int written; this->values[SWAP_METER_CACHE] = NAN; /* 'cached' not present on all platforms */ + this->values[SWAP_METER_FRONTSWAP] = NAN; /* 'frontswap' not present on all platforms */ Platform_setSwapValues(this); written = Meter_humanUnit(buffer, this->values[SWAP_METER_USED], size); @@ -54,6 +56,12 @@ static void SwapMeter_display(const Object* cast, RichString* out) { RichString_appendAscii(out, CRT_colors[METER_TEXT], " cache:"); RichString_appendAscii(out, CRT_colors[SWAP_CACHE], buffer); } + + if (!isnan(this->values[SWAP_METER_FRONTSWAP])) { + Meter_humanUnit(buffer, this->values[SWAP_METER_FRONTSWAP], sizeof(buffer)); + RichString_appendAscii(out, CRT_colors[METER_TEXT], " frontswap:"); + RichString_appendAscii(out, CRT_colors[SWAP_FRONTSWAP], buffer); + } } const MeterClass SwapMeter_class = { |