Some queued patches for ram disgard cleanup, and some debug probes. QEMU's ram disgard logic is probably a bit hard to predict because we send a bunch of packets to notify the disgarded ranges rather than sending the bitmap. The packets to send depending on the bitmap layout.
Initially I thought it could be a problem but in reality it's fine so far per my initial measurement. So I'm flushing the cleanup/trace patches out because I think they're still helpful. Please have a look, thanks. Peter Xu (7): migration: Drop dead code of ram_debug_dump_bitmap() migration: Don't return for postcopy_chunk_hostpages() migration: Drop postcopy_chunk_hostpages() migration: Do chunk page in postcopy_each_ram_send_discard() migration: Drop return code for disgard ram process migration: Dump sub-cmd name in loadvm_process_command tp migration: Finer grained tracepoints for POSTCOPY_LISTEN migration/migration.c | 5 +- migration/ram.c | 103 ++++++----------------------------------- migration/ram.h | 4 +- migration/savevm.c | 7 ++- migration/trace-events | 4 +- 5 files changed, 23 insertions(+), 100 deletions(-) -- 2.32.0
