[libvirt] [PATCH 5/5] qemu: Add support for emulatorsched

This helps in a scenarios where vCPUs run with a priority that is so high they might starve the emulator thread. And it also fits with the rest of the settings. Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com&gt; --- docs/news.xml | 12 ++++++++++++ src/qemu/qemu_process.c | 2 +- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/docs/news.xml b/docs/news.xml index 86c77346940a..84de507b0e9a 100644 --- a/docs/news.xml +++ b/docs/news.xml @@ -35,6 +35,18 @@ <libvirt> <release version="v5.3.0" date="unreleased"> <section title="New features"> + <change> + <summary> + qemu: Add support for setting the emulator scheduler parameters + </summary> + <description> + I/O threads and vCPU threads already support setting schedulers, but + until now it was impossible to do so for the main QEMU thread + (emulator thread in the libvirt naming). This is, however, requested + for some very specific scenarios, for example when vCPU threads are + running at such priority that could starve the main thread. + </description> + </change> </section> <section title="Improvements"> <change> diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index f773aa89b78d..55f4074ea146 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -2683,7 +2683,7 @@ qemuProcessSetupEmulator(virDomainObjPtr vm) 0, vm->def->cputune.emulatorpin, vm->def->cputune.emulator_period, vm->def->cputune.emulator_quota, - NULL); + vm->def->cputune.emulatorsched); } -- 2.21.0