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test_driver: implement virDomainMemoryStats

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The main value here is the current balloon value which taken from the
config. All the other values (except for period) are derived by 2^n
division so that compiler prefers bitwise operations. Period value was
kept fixed in order to produce predictable results in a test environment.

Signed-off-by: Ilias Stamatis <stamatis.iliass@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This commit is contained in:
Ilias Stamatis 2019-08-02 13:13:31 +02:00 committed by Erik Skultety
parent 672dd83719
commit 95631b8a16
1 changed files with 54 additions and 0 deletions
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54
src/test/test_driver.c
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@ -7391,6 +7391,59 @@ testDomainManagedSaveRemove(virDomainPtr dom, unsigned int flags)
return 0;
}
static int
testDomainMemoryStats(virDomainPtr dom,
virDomainMemoryStatPtr stats,
unsigned int nr_stats,
unsigned int flags)
{
virDomainObjPtr vm = NULL;
int cur_memory;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = testDomObjFromDomain(dom)))
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
cur_memory = vm->def->mem.cur_balloon;
ret = 0;
#define STATS_SET_PARAM(name, value) \
if (ret < nr_stats) { \
stats[ret].tag = name; \
stats[ret].val = value; \
ret++; \
}
if (virDomainDefHasMemballoon(vm->def)) {
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_ACTUAL_BALLOON, cur_memory);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_SWAP_IN, 0);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_SWAP_OUT, 0);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_MAJOR_FAULT, 0);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_MINOR_FAULT, 0);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_UNUSED, cur_memory / 2);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_AVAILABLE, cur_memory);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_USABLE, cur_memory / 2);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_LAST_UPDATE, 627319920);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_DISK_CACHES, cur_memory / 8);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_HUGETLB_PGALLOC, 0);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_HUGETLB_PGFAIL, 0);
STATS_SET_PARAM(VIR_DOMAIN_MEMORY_STAT_RSS, cur_memory / 2);
}
#undef STATS_SET_PARAM
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
testDomainMemoryPeek(virDomainPtr dom,
unsigned long long start,
@ -8723,6 +8776,7 @@ static virHypervisorDriver testHypervisorDriver = {
.domainManagedSave = testDomainManagedSave, /* 1.1.4 */
.domainHasManagedSaveImage = testDomainHasManagedSaveImage, /* 1.1.4 */
.domainManagedSaveRemove = testDomainManagedSaveRemove, /* 1.1.4 */
.domainMemoryStats = testDomainMemoryStats, /* 5.7.0 */
.domainMemoryPeek = testDomainMemoryPeek, /* 5.4.0 */
.domainSnapshotNum = testDomainSnapshotNum, /* 1.1.4 */