This series has been successfully tested. The information displayed from the HMP info migrate command is more user-friendly, with the possibility of displaying the globals with info migrate -a. (qemu) info migrate -a Status: active Sockets: [ tcp::::8888 ] Globals: store-global-state: on only-migratable: off send-configuration: on send-section-footer: on send-switchover-start: on clear-bitmap-shift: 18
Tested-by: Mario Casquero <mcasq...@redhat.com> On Mon, Jun 9, 2025 at 6:20 PM Peter Xu <pet...@redhat.com> wrote: > > v2: > - Collected R-bs > - Avoid using "\b" in HMP dumps [Markus, Dave] > > The series is based on a small patch from Yanfei Xu here: > > Based-on: <20250514115827.3216082-1-yanfei...@bytedance.com> > https://lore.kernel.org/r/20250514115827.3216082-1-yanfei...@bytedance.com > > This is a series that collected many of either enhancements or cleanups I > got for QEMU 10.1, which almost came from when working on the last patch. > > The last patch, which is a oneliner, can further reduce 10% postcopy page > fault latency with preempt mode enabled. > > Before: 268.00us (+-1.87%) > After: 232.67us (+-2.01%) > > The patch layout is as following: > > Patch 1: A follow up of HMP change for "info migrate", per > suggestion from Dave > Patch 2: Yet another HMP fix for blocktime displays > Patch 3-10: Cleanups everywhere, especially please take a look at > patch 10 which changes the core switchover decision logic > Patch 11: The one-liner optimization > > Comments welcomed, thanks. > > Peter Xu (11): > migration/hmp: Reorg "info migrate" once more > migration/hmp: Fix postcopy-blocktime per-vCPU results > migration/docs: Move docs for postcopy blocktime feature > migration/bg-snapshot: Do not check for SKIP in iterator > migration: Drop save_live_complete_postcopy hook > migration: Rename save_live_complete_precopy to save_complete > migration: qemu_savevm_complete*() helpers > migration/ram: One less indent for ram_find_and_save_block() > migration/ram: Add tracepoints for ram_save_complete() > migration: Rewrite the migration complete detect logic > migration/postcopy: Avoid clearing dirty bitmap for postcopy too > > docs/devel/migration/postcopy.rst | 36 +++++++------- > include/migration/register.h | 26 ++++------ > hw/ppc/spapr.c | 2 +- > hw/s390x/s390-stattrib.c | 2 +- > hw/vfio/migration.c | 2 +- > migration/block-dirty-bitmap.c | 3 +- > migration/migration-hmp-cmds.c | 81 ++++++++++++++++-------------- > migration/migration.c | 61 ++++++++++++++++------- > migration/ram.c | 32 +++++++----- > migration/savevm.c | 83 +++++++++++++++++-------------- > migration/trace-events | 1 + > 11 files changed, 184 insertions(+), 145 deletions(-) > > -- > 2.49.0 > >
