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Implement shared memory support on the PCP platform

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Uses the mem.util.shared metric (Shmem from meminfo).
This commit is contained in:
Nathan Scott 2021-03-17 09:54:15 +11:00
parent d3af4e670d
commit b424a5b137
3 changed files with 16 additions and 14 deletions
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7
pcp/PCPProcessList.c
View File

@ -1,7 +1,7 @@
/*
htop - PCPProcessList.c
(C) 2014 Hisham H. Muhammad
(C) 2020 htop dev team
(C) 2020-2021 htop dev team
(C) 2020-2021 Red Hat, Inc. All Rights Reserved.
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
@ -584,12 +584,13 @@ static void PCPProcessList_updateMemoryInfo(ProcessList* super) {
super->buffersMem = value.ull;
if (Metric_values(PCP_MEM_SRECLAIM, &value, 1, PM_TYPE_U64) != NULL)
sreclaimableMem = value.ull;
if (Metric_values(PCP_MEM_SHARED, &value, 1, PM_TYPE_U64) != NULL)
super->sharedMem = value.ull;
if (Metric_values(PCP_MEM_CACHED, &value, 1, PM_TYPE_U64) != NULL) {
super->cachedMem = value.ull;
super->cachedMem += sreclaimableMem;
}
unsigned long long int usedDiff;
usedDiff = freeMem + super->cachedMem + super->buffersMem;
const memory_t usedDiff = freeMem + super->cachedMem + sreclaimableMem + super->buffersMem + super->sharedMem;
super->usedMem = (super->totalMem >= usedDiff) ?
super->totalMem - usedDiff : super->totalMem - freeMem;
if (Metric_values(PCP_MEM_AVAILABLE, &value, 1, PM_TYPE_U64) != NULL)

20
pcp/Platform.c
View File

@ -1,7 +1,7 @@
/*
htop - linux/Platform.c
(C) 2014 Hisham H. Muhammad
(C) 2020 htop dev team
(C) 2020-2021 htop dev team
(C) 2020-2021 Red Hat, Inc. All Rights Reserved.
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
@ -152,6 +152,7 @@ static const char *Platform_metricNames[] = {
[PCP_MEM_AVAILABLE] = "mem.util.available",
[PCP_MEM_BUFFERS] = "mem.util.bufmem",
[PCP_MEM_CACHED] = "mem.util.cached",
[PCP_MEM_SHARED] = "mem.util.shared",
[PCP_MEM_SRECLAIM] = "mem.util.slabReclaimable",
[PCP_MEM_SWAPCACHED] = "mem.util.swapCached",
[PCP_MEM_SWAPTOTAL] = "mem.util.swapTotal",
@ -587,18 +588,17 @@ double Platform_setCPUValues(Meter* this, int cpu) {
void Platform_setMemoryValues(Meter* this) {
const ProcessList* pl = this->pl;
const PCPProcessList* ppl = (const PCPProcessList*) pl;
long int usedMem = pl->usedMem;
long int buffersMem = pl->buffersMem;
long int cachedMem = pl->cachedMem;
usedMem -= buffersMem + cachedMem;
this->total = pl->totalMem;
this->values[0] = usedMem;
this->values[1] = buffersMem;
this->values[2] = cachedMem;
this->total = pl->totalMem;
this->values[0] = pl->usedMem;
this->values[1] = pl->buffersMem;
this->values[2] = pl->sharedMem;
this->values[3] = pl->cachedMem;
this->values[4] = pl->availableMem;
if (ppl->zfs.enabled != 0) {
this->values[0] -= ppl->zfs.size;
this->values[2] += ppl->zfs.size;
this->values[3] += ppl->zfs.size;
}
}

3
pcp/Platform.h
View File

@ -3,7 +3,7 @@
/*
htop - pcp/Platform.h
(C) 2014 Hisham H. Muhammad
(C) 2020 htop dev team
(C) 2020-2021 htop dev team
(C) 2020-2021 Red Hat, Inc. All Rights Reserved.
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
@ -125,6 +125,7 @@ typedef enum Metric_ {
PCP_MEM_FREE, /* mem.util.free */
PCP_MEM_BUFFERS, /* mem.util.bufmem */
PCP_MEM_CACHED, /* mem.util.cached */
PCP_MEM_SHARED, /* mem.util.shared */
PCP_MEM_AVAILABLE, /* mem.util.available */
PCP_MEM_SRECLAIM, /* mem.util.slabReclaimable */
PCP_MEM_SWAPCACHED, /* mem.util.swapCached */