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numad: Ignore cpuset if placement is auto

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As explained in previous patch, numad will balance the affinity
dynamically, so reflecting the cpuset from numad at the first
time doesn't make much case, and may just could cause confusion.
This commit is contained in:
Osier Yang 2012-04-11 22:40:33 +08:00
parent ccf80e3630
commit 8fb2164cff
2 changed files with 20 additions and 18 deletions
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10
docs/formatdomain.html.in
View File

@ -365,11 +365,11 @@
"auto", defaults to "static" if <code>cpuset</code> is specified,
"auto" indicates the domain process will be pinned to the advisory
nodeset from querying numad, and the value of attribute
<code>cpuset</code> will be overridden by the advisory nodeset
from numad if it's specified. If both <code>cpuset</code> and
<code>placement</code> are not specified, or if <code>placement</code>
is "static", but no <code>cpuset</code> is specified, the domain
process will be pinned to all the available physical CPUs.
<code>cpuset</code> will be ignored if it's specified. If both
<code>cpuset</code> and <code>placement</code> are not specified,
or if <code>placement</code> is "static", but no <code>cpuset</code>
is specified, the domain process will be pinned to all the
available physical CPUs.
</dd>
</dl>

28
src/conf/domain_conf.c
View File

@ -7884,19 +7884,6 @@ static virDomainDefPtr virDomainDefParseXML(virCapsPtr caps,
}
}
tmp = virXPathString("string(./vcpu[1]/@cpuset)", ctxt);
if (tmp) {
char *set = tmp;
def->cpumasklen = VIR_DOMAIN_CPUMASK_LEN;
if (VIR_ALLOC_N(def->cpumask, def->cpumasklen) < 0) {
goto no_memory;
}
if (virDomainCpuSetParse(set, 0, def->cpumask,
def->cpumasklen) < 0)
goto error;
VIR_FREE(tmp);
}
tmp = virXPathString("string(./vcpu[1]/@placement)", ctxt);
if (tmp) {
if ((def->placement_mode =
@ -7913,6 +7900,21 @@ static virDomainDefPtr virDomainDefParseXML(virCapsPtr caps,
def->placement_mode = VIR_DOMAIN_CPU_PLACEMENT_MODE_STATIC;
}
if (def->placement_mode == VIR_DOMAIN_CPU_PLACEMENT_MODE_STATIC) {
tmp = virXPathString("string(./vcpu[1]/@cpuset)", ctxt);
if (tmp) {
char *set = tmp;
def->cpumasklen = VIR_DOMAIN_CPUMASK_LEN;
if (VIR_ALLOC_N(def->cpumask, def->cpumasklen) < 0) {
goto no_memory;
}
if (virDomainCpuSetParse(set, 0, def->cpumask,
def->cpumasklen) < 0)
goto error;
VIR_FREE(tmp);
}
}
/* Extract cpu tunables. */
if (virXPathULong("string(./cputune/shares[1])", ctxt,
&def->cputune.shares) < 0)