fio debug, 打开log

打开fio的log：

1.10. Command line options （link）

--debug=type

Enable verbose tracing type of various fio actions. May be all for all types or individual types separated by a comma (e.g. --debug=file,mem will enable file and memory debugging). Currently, additional logging is available for:

process

Dump info related to processes.

file

Dump info related to file actions.

command:

fio --bs=8k --debug=file --output-format=json+ --direct=1 --output=/output/fio-randread-8k.json /input/fio-randread.job

output:

file     58    add file fio-randwrite
file     58    resize file array to 1 files
file     58    file 0x7f484ae0a0d0 "/testdir/fio-randwrite"