Re: [libvirt] [PATCH 1/2] qemu: implement block group for bulk stats.

This patch add the block group for bulk stats. The following typed parameter used for each block stats: block.count - number of block devices in this domain block.0.name - name of the block device block.0.rd_bytes - number of read bytes block.0.rd_operations - number of read requests block.0.rd_total_time - total time spend on cache reads in nano-seconds block.0.wr_bytes - number of write bytes block.0.wr_operations - number of write requests block.0.wr_total_time - total time spend on cache write in nano-seconds block.0.flush_operations - total flush requests block.0.flush_total_time - total time spend on cache flushing in nano-seconds Signed-off-by: Li Wei <lw(a)cn.fujitsu.com&gt; ---

+++ b/src/libvirt.c @@ -21632,6 +21632,19 @@ virConnectGetAllDomainStats(virConnectPtr conn, * "state.reason" - reason for entering given state, returned as int from * virDomain*Reason enum corresponding to given state. * + * VIR_DOMAIN_STATS_BLOCK: Return block device stats. The typed parameter keys + * are in this format: + * "block.count" - number of block devices in this domain + * "block.0.name" - name of the block device + * "block.0.rd_bytes" - number of read bytes + * "block.0.rd_operations" - number of read requests + * "block.0.rd_total_time" - total time spend on cache reads in nano-seconds + * "block.0.wr_bytes" - number of write bytes + * "block.0.wr_operations" - number of write requests + * "block.0.wr_total_time" - total time spend on cache write in nano-seconds + * "block.0.flush_operations" - total flush requests + * "block.0.flush_total_time" - total time spend on cache flushing in nano-seconds

+static int +qemuDomainGetStatsBlock(virDomainObjPtr dom, + virDomainStatsRecordPtr record, + int *maxparams, + unsigned int flags) +{ + int ret; + qemuDomainObjPrivatePtr priv = dom->privateData; + + /* only valid for active domain, ignore inactive ones silently */ + if (!virDomainObjIsActive(dom)) + return 0; + + if (qemuDomainObjBeginJob(qemu_driver, dom, QEMU_JOB_QUERY) < 0) + return -1; + + qemuDomainObjEnterMonitor(qemu_driver, dom);