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| author | Peter Xu <peterx@redhat.com> | 2025-06-13 10:07:59 -0400 |
|---|---|---|
| committer | Fabiano Rosas <farosas@suse.de> | 2025-07-11 10:37:36 -0300 |
| commit | f1549da610dc3d37da4de0e3ba7374c5316af716 (patch) | |
| tree | 5af20061de5abd00f998016ec155d8a3a033fb24 | |
| parent | ff9dfc41d9e74651d565a3cad80dbaac3cde1eb9 (diff) | |
| download | qemu-f1549da610dc3d37da4de0e3ba7374c5316af716.zip qemu-f1549da610dc3d37da4de0e3ba7374c5316af716.tar.gz qemu-f1549da610dc3d37da4de0e3ba7374c5316af716.tar.bz2 | |
migration/ram: Add tracepoints for ram_save_complete()
Take notes on start/end state of dirty pages for the whole system.
Reviewed-by: Juraj Marcin <jmarcin@redhat.com>
Link: https://lore.kernel.org/r/20250613140801.474264-10-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
| -rw-r--r-- | migration/ram.c | 5 | ||||
| -rw-r--r-- | migration/trace-events | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/migration/ram.c b/migration/ram.c index aa76f0a..e4871b4 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3290,6 +3290,8 @@ static int ram_save_complete(QEMUFile *f, void *opaque) RAMState *rs = *temp; int ret = 0; + trace_ram_save_complete(rs->migration_dirty_pages, 0); + rs->last_stage = !migration_in_colo_state(); WITH_RCU_READ_LOCK_GUARD() { @@ -3353,6 +3355,9 @@ static int ram_save_complete(QEMUFile *f, void *opaque) } qemu_put_be64(f, RAM_SAVE_FLAG_EOS); + + trace_ram_save_complete(rs->migration_dirty_pages, 1); + return qemu_fflush(f); } diff --git a/migration/trace-events b/migration/trace-events index c506e11..dcd8fe9 100644 --- a/migration/trace-events +++ b/migration/trace-events @@ -105,6 +105,7 @@ ram_load_postcopy_loop(int channel, uint64_t addr, int flags) "chan=%d addr=0x%" ram_postcopy_send_discard_bitmap(void) "" ram_save_page(const char *rbname, uint64_t offset, void *host) "%s: offset: 0x%" PRIx64 " host: %p" ram_save_queue_pages(const char *rbname, size_t start, size_t len) "%s: start: 0x%zx len: 0x%zx" +ram_save_complete(uint64_t dirty_pages, int done) "dirty=%" PRIu64 ", done=%d" ram_dirty_bitmap_request(char *str) "%s" ram_dirty_bitmap_reload_begin(char *str) "%s" ram_dirty_bitmap_reload_complete(char *str) "%s" |