[Qemu-devel] [PATCH 0/3] Optimize the performance for single thread (de)compression

[Liang Li]

When the (de)compression thread count is set to 1, the current implementation
is inefficient because of the data copy and thread syncronization cost, a 
separate
single (de)compression thread is useless for performance improvement and will
result in performance degradation.

If (de)compression thread count is set to 1, we skip to use the multiple threads
mechanism. 


Liang Li (3):
  qemu-file: improve qemu_put_compression_data
  migration: optimization for one compression thread
  migration: optimization for one decompression thread

 migration/qemu-file.c | 10 +++++++++-
 migration/ram.c       | 46 ++++++++++++++++++++++++++++++++++------------
 2 files changed, 43 insertions(+), 13 deletions(-)

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1.9.1