About test questions

[张蒙]

Every test will test the memory copy. If I only want to test the file copy, disk read and write, what should I do?

# stressapptest -f test.file -f test1.file

2020/06/27-11:08:50(CST) Log: Commandline - stressapptest -f test.file -f test1.file

2020/06/27-11:08:50(CST) Stats: SAT revision 1.0.9_autoconf, 64 bit binary

2020/06/27-11:08:50(CST) Log: root @ node3 on Sat Jun 27 09:24:55 CST 2020 from open source release

2020/06/27-11:08:50(CST) Log: 1 nodes, 64 cpus.

2020/06/27-11:08:50(CST) Log: Defaulting to 64 copy threads

2020/06/27-11:08:50(CST) Log: Total 64571 MB. Free 58860 MB. Hugepages 0 MB. Targeting 61150 MB (94%)

2020/06/27-11:08:50(CST) Log: Prefer plain malloc memory allocation.

2020/06/27-11:08:50(CST) Log: Using mmap() allocation at 0xfff0ab6a0000.

2020/06/27-11:08:50(CST) Stats: Starting SAT, 61150M, 20 seconds

2020/06/27-11:09:33(CST) Log: region number 17 exceeds region count 8

2020/06/27-11:09:43(CST) Log: Region mask: 0xff

2020/06/27-11:09:53(CST) Log: Seconds remaining: 10

2020/06/27-11:12:01(CST) Stats: Found 0 hardware incidents

2020/06/27-11:12:01(CST) Stats: Completed: 13746.00M in 21.17s 649.44MB/s, with 0 hardware incidents, 0 errors

2020/06/27-11:12:01(CST) Stats: Memory Copy: 13570.00M at 659.48MB/s

2020/06/27-11:12:01(CST) Stats: File Copy: 176.00M at 8.44MB/s

2020/06/27-11:12:01(CST) Stats: Net Copy: 0.00M at 0.00MB/s

2020/06/27-11:12:01(CST) Stats: Data Check: 0.00M at 0.00MB/s

2020/06/27-11:12:01(CST) Stats: Invert Data: 0.00M at 0.00MB/s

2020/06/27-11:12:01(CST) Stats: Disk: 0.00M at 0.00MB/s

2020/06/27-11:12:01(CST) 

2020/06/27-11:12:01(CST) Status: PASS - please verify no corrected errors

2020/06/27-11:12:01(CST) 

[Nick Sanders]

You can pass "-m 0" to set the memory copy thread count to zero (default is one thread per CPU core). 

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[Jigish Parikh]

Hi Nick,

What about the other copy methods. I can only exercise the memory copy or Invert data using i flag but not the rest.

Thank you,

Jigish.