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+performance: 0.996
+graphic: 0.977
+network: 0.956
+device: 0.890
+ppc: 0.857
+PID: 0.780
+semantic: 0.756
+debug: 0.737
+socket: 0.731
+architecture: 0.712
+vnc: 0.705
+VMM: 0.702
+hypervisor: 0.674
+risc-v: 0.669
+x86: 0.636
+mistranslation: 0.624
+i386: 0.618
+permissions: 0.609
+KVM: 0.555
+register: 0.551
+kernel: 0.548
+peripherals: 0.545
+arm: 0.517
+TCG: 0.514
+user-level: 0.463
+boot: 0.419
+assembly: 0.331
+virtual: 0.178
+files: 0.168
+
+live migration's performance with compression enabled is much worse than compression disabled
+Description of problem:
+
+Steps to reproduce:
+1. Run QEMU the Guests with 1Gpbs network on source host and destination host with QEMU command line
+2. Run some memory work loads on Guest, for example, ./memtester 1G 1
+3. Set migration parameters in QEMU monitor. On source and destination, 
+   execute: #migrate_set_capability compress on
+   Other compression parameters are all default. 
+4. Run migrate command, # migrate -d tcp:10.156.208.154:4000
+5. The results: 
+   - without compression：  total time:  197366 ms   throughput:   937.81 mbps  transferred Ram: 22593703 kbytes 
+   - with compression: total time:  281711 ms   throughput:  90.24 mbps    transferred Ram: 3102898 kbytes  
+
+When compression is enabled, the compression transferred ram is reduced a lot. But the throughput is down badly.
+The total time of live migration with compression is longer than without compression. 
+I tried with 100G network bandwidth, it also has the same problem.
+Additional information:
+