Michael Dexter michaeldexter
michaeldexter
/ basic-sanity-validation-profile.fio
Created
February 28, 2023 00:28
— forked from szaydel/basic-sanity-validation-profile.fio
[fio profiles] fio profiles for load generation, device or system stress and IO simulation/profiling #tags: fio, load, profiling, fio-load, load-gen, load generation, io, io profiling, filesystem, stress, io-load
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| ; fio profile for basic sanity validation of configured system. | |
| [global] | |
| ioengine=solarisaio | |
| ; ioengine=linuxaio | |
| ; ioengine=libaio | |
| ; fsync=16 | |
| ; rw=read | |
| iodepth=16 | |
| ; rw=randrw ; Random IO |
michaeldexter
/ blktrace.d
Created
March 3, 2023 16:43
— forked from szaydel/blktrace.d
[Dtrace snippets using io::: probes] One-liners and Scripts for observation at lower levels of the IO stack #tags: sd, io, io probes, stable probes, block device, dtrace, bandwidth, throughput, io errors, io retries
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| dtrace -qn ' | |
| BEGIN { | |
| printf("timestamp(ns),latency(us),iotype,device,filename,blk.number,blk.count"); | |
| } | |
| io:::start { | |
| ts[args[0]->b_edev, args[0]->b_blkno] = timestamp; | |
| } | |
| io:::done /ts[args[0]->b_edev, args[0]->b_blkno] != 0/ { | |
| this->lat_us = (timestamp - ts[args[0]->b_edev, args[0]->b_blkno]) | |
| / 1000; |