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| author | Xiao Guangrong <xiaoguangrong@tencent.com> | 2018-09-06 15:00:59 +0800 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2018-09-26 12:26:58 +0100 |
| commit | 48df9d8002914137b0a1e5c4ca4d402224f205f9 (patch) | |
| tree | e2f52a4476614544d54234d477480f0ce412e494 /hw/core/qdev.c | |
| parent | 827beacb474c60b1801399c40ec717c65f9c4e34 (diff) | |
| download | focaccia-qemu-48df9d8002914137b0a1e5c4ca4d402224f205f9.tar.gz focaccia-qemu-48df9d8002914137b0a1e5c4ca4d402224f205f9.zip | |
migration: do not flush_compressed_data at the end of iteration
flush_compressed_data() needs to wait all compression threads to finish their work, after that all threads are free until the migration feeds new request to them, reducing its call can improve the throughput and use CPU resource more effectively We do not need to flush all threads at the end of iteration, the data can be kept locally until the memory block is changed or memory migration starts over in that case we will meet a dirtied page which may still exists in compression threads's ring Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20180906070101.27280-2-xiaoguangrong@tencent.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'hw/core/qdev.c')
0 files changed, 0 insertions, 0 deletions