Re: [libvirt] [PATCH 2 of 3] Add scheduling parameter support for LXC domains
On Tue, Oct 07, 2008 at 08:30:21AM -0700, Dan Smith wrote:
diff -r 6fb284fa200a -r ebecbe5caa03 src/lxc_driver.c
--- a/src/lxc_driver.c Tue Oct 07 08:21:49 2008 -0700
+++ b/src/lxc_driver.c Tue Oct 07 08:21:50 2008 -0700
@@ -35,6 +35,7 @@
#include <unistd.h>
#include <wait.h>
+#include "internal.h"
#include "lxc_conf.h"
#include "lxc_container.h"
#include "lxc_driver.h"
@@ -1149,6 +1150,94 @@
return 0;
}
+static char *lxcGetSchedulerType(virDomainPtr domain, int *nparams)
+{
+ if (nparams)
+ *nparams = 1;
+
+ return strdup("cgroup");
+}
cgroups isn't really the schedular here - its just the mechanism for
supplying the cpu_shares parameter to the schedular.
I sort of imagined that for Linux based VMs we'd key this off the
various schedulars available for sched_getscheduler(2), but
actually thinking about it more, its probably best to just say that
the schedular is 'posix', and make the choice of SCHED_FIFO,
SCHED_RR, SCHED_OTHER, etc be a tunable parameter.
Daniel
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