| Table of Contents |
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Type | System | Level range | Remarks |
|---|---|---|---|
| IQA | HW | 1~9 | Requires Intel QAT H/W compression board |
| ZLIB | SW | 1~9 | - |
| LZ4 | SW | 1~9 | - |
| NONE | - | - | OFF |
The command to set the compression plug-in is as follows.
| Type | Commands | Example output | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| IQA | drx-ctl set compress iqa [level] [connect name] |
| |||||||||
| ZLIB | drx-ctl set compress zlib [level] [connect name] |
| |||||||||
| LZ4 | drx-ctl set compress lz4 [level] [connect name] |
| |||||||||
| NONE | drx-ctl set compress none 0 [connect name] |
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- QA team's analysis of performance impact
/wiki/spaces/QA/pages/819396836 925794470
Configuration CPU Core count Number of automatically calculated threads S/W Zlib Level 1 8 Core / 1GBps 4 H/W Zlib Level 1 16 Core / 2GBps 8
- Commands
Code Block theme DJango title process-thread-count collapse true < Configuration > [root@c73-qat-1 drbd.d]# drx-ctl set process-thread-count 10 Result: done. [root@c73-qat-1 drbd.d]# < Check > [root@c73-qat-1 drbd.d]# drx-ctl show all ... ip-verification=on process-thread-count=10 [root@c73-qat-1 drbd.d]#
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- Change TCP socket buffer size
- Server used for testing : Server of Appendix D. DRX Appliance Configuration Guide
- References link : https://www.ibm.com/support/knowledgecenter/en/SSZTET_10.1/smpi01/smpi01_tysfbpjp.html
- Default : 208KBytes
Code Block theme DJango [root@c73-qat-1 drbd.d]# sysctl -a | grep net.core.[rw]mem net.core.rmem_default = 212992 net.core.rmem_max = 212992 net.core.wmem_default = 212992 net.core.wmem_max = 212992 [root@c73-qat-1 drbd.d]#
- Modify command : Change the max entry to 2 MBytes.
Code Block theme DJango sysctl -w net.core.rmem_max="2097152" sysctl -w net.core.wmem_max="2097152"
Info The set value is not an absolute value and the performance result may be different depending on server and network environment.
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