[libvirt] [PATCH 11/21] conf: Format cache banks in capabilities with virPrettySize
Martin Kletzander
mkletzan at redhat.com
Mon Nov 13 08:50:26 UTC 2017
Signed-off-by: Martin Kletzander <mkletzan at redhat.com>
---
src/conf/capabilities.c | 45 ++++++++++++++--------
tests/vircaps2xmldata/vircaps-x86_64-caches.xml | 2 +-
.../vircaps2xmldata/vircaps-x86_64-resctrl-cdp.xml | 4 +-
.../vircaps2xmldata/vircaps-x86_64-resctrl-skx.xml | 4 +-
tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml | 4 +-
5 files changed, 36 insertions(+), 23 deletions(-)
diff --git a/src/conf/capabilities.c b/src/conf/capabilities.c
index 095ef51c424a..5bf8ac2019f9 100644
--- a/src/conf/capabilities.c
+++ b/src/conf/capabilities.c
@@ -883,7 +883,8 @@ virCapabilitiesFormatCaches(virBufferPtr buf,
for (i = 0; i < ncaches; i++) {
virCapsHostCacheBankPtr bank = caches[i];
char *cpus_str = virBitmapFormat(bank->cpus);
- bool kilos = !(bank->size % 1024);
+ const char *unit = NULL;
+ unsigned long long short_size = virPrettySize(bank->size, &unit);
if (!cpus_str)
return -1;
@@ -897,32 +898,44 @@ virCapabilitiesFormatCaches(virBufferPtr buf,
"size='%llu' unit='%s' cpus='%s'",
bank->id, bank->level,
virCacheTypeToString(bank->type),
- bank->size >> (kilos * 10),
- kilos ? "KiB" : "B",
- cpus_str);
+ short_size, unit, cpus_str);
VIR_FREE(cpus_str);
virBufferSetChildIndent(&controlBuf, buf);
for (j = 0; j < bank->ncontrols; j++) {
- bool min_kilos = !(bank->controls[j]->granularity % 1024);
-
- /* Only use KiB if both values are divisible */
- if (bank->controls[j]->min)
- min_kilos = min_kilos && !(bank->controls[j]->min % 1024);
+ const char *min_unit;
+ unsigned long long gran_short_size = bank->controls[j]->granularity;
+ unsigned long long min_short_size = bank->controls[j]->min;
+
+ gran_short_size = virPrettySize(gran_short_size, &unit);
+ min_short_size = virPrettySize(min_short_size, &min_unit);
+
+ /* Only use the smaller unit if they are different */
+ if (min_short_size) {
+ unsigned long long gran_div;
+ unsigned long long min_div;
+
+ gran_div = bank->controls[j]->granularity / gran_short_size;
+ min_div = bank->controls[j]->min / min_short_size;
+
+ if (min_div > gran_div) {
+ min_short_size *= min_div / gran_div;
+ } else if (min_div < gran_div) {
+ unit = min_unit;
+ gran_short_size *= gran_div / min_div;
+ }
+ }
virBufferAsprintf(&controlBuf,
"<control granularity='%llu'",
- bank->controls[j]->granularity >> (min_kilos * 10));
+ gran_short_size);
- if (bank->controls[j]->min) {
- virBufferAsprintf(&controlBuf,
- " min='%llu'",
- bank->controls[j]->min >> (min_kilos * 10));
- }
+ if (min_short_size)
+ virBufferAsprintf(&controlBuf, " min='%llu'", min_short_size);
virBufferAsprintf(&controlBuf,
" unit='%s' type='%s' maxAllocs='%u'/>\n",
- min_kilos ? "KiB" : "B",
+ unit,
virCacheTypeToString(bank->controls[j]->scope),
bank->controls[j]->max_allocation);
}
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-caches.xml b/tests/vircaps2xmldata/vircaps-x86_64-caches.xml
index fe0be6d08fa7..0c6f3769a2a7 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-caches.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-caches.xml
@@ -29,7 +29,7 @@
</cells>
</topology>
<cache>
- <bank id='0' level='3' type='both' size='8192' unit='KiB' cpus='0-7'/>
+ <bank id='0' level='3' type='both' size='8' unit='MiB' cpus='0-7'/>
</cache>
</host>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cdp.xml b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cdp.xml
index 7361537bfb56..443917c62d69 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cdp.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-cdp.xml
@@ -41,11 +41,11 @@
</cells>
</topology>
<cache>
- <bank id='0' level='3' type='both' size='15360' unit='KiB' cpus='0-5'>
+ <bank id='0' level='3' type='both' size='15' unit='MiB' cpus='0-5'>
<control granularity='768' unit='KiB' type='code' maxAllocs='8'/>
<control granularity='768' unit='KiB' type='data' maxAllocs='8'/>
</bank>
- <bank id='1' level='3' type='both' size='15360' unit='KiB' cpus='6-11'>
+ <bank id='1' level='3' type='both' size='15' unit='MiB' cpus='6-11'>
<control granularity='768' unit='KiB' type='code' maxAllocs='8'/>
<control granularity='768' unit='KiB' type='data' maxAllocs='8'/>
</bank>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx.xml b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx.xml
index 4e91c87de3b1..0cd25e59a9e0 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-resctrl-skx.xml
@@ -22,8 +22,8 @@
</cells>
</topology>
<cache>
- <bank id='0' level='3' type='both' size='33792' unit='KiB' cpus='0'>
- <control granularity='3072' unit='KiB' type='both' maxAllocs='16'/>
+ <bank id='0' level='3' type='both' size='33' unit='MiB' cpus='0'>
+ <control granularity='3' unit='MiB' type='both' maxAllocs='16'/>
</bank>
</cache>
</host>
diff --git a/tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml b/tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml
index eb02ad3322a2..7629259294d6 100644
--- a/tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml
+++ b/tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml
@@ -41,10 +41,10 @@
</cells>
</topology>
<cache>
- <bank id='0' level='3' type='both' size='15360' unit='KiB' cpus='0-5'>
+ <bank id='0' level='3' type='both' size='15' unit='MiB' cpus='0-5'>
<control granularity='768' min='1536' unit='KiB' type='both' maxAllocs='4'/>
</bank>
- <bank id='1' level='3' type='both' size='15360' unit='KiB' cpus='6-11'>
+ <bank id='1' level='3' type='both' size='15' unit='MiB' cpus='6-11'>
<control granularity='768' min='1536' unit='KiB' type='both' maxAllocs='4'/>
</bank>
</cache>
--
2.15.0
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