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+====== hdparm speed test ======
+<code>hdparm -t --direct /dev/sda</code>
+====== read test ======
+<code>dd if=/dev/sda of=/dev/null bs=1M</code>
+====== LINUX: How to measure storage speed ======
+Write (10GB File):
+<code>
+# dd if=/dev/zero of=erase.bin bs=1M count=10000
+</code>
+Read (10GB File):
+<code>
+# dd if=erase.bin of=/dev/null bs=1M count=10000
+# rm erase.bin
+</code>
+\\
+====== FIO ======
+<code>fio --ioengine=libaio --filename=/filenameorblockdevice --direct=1 --sync=1 --rw=write --bs=4M --numjobs=1 --iodepth=1 --runtime=600 --time_based --group_reporting --name=fio-disk --output-format=terse,json,normal --output=fio.log --bandwidth-log</code>
+<code>
+fio --filename=/file --direct=1 --fsync=1 --rw=randwrite --bs=4k --numjobs=1 --iodepth=1 --runtime=60 --time_based --group-reporting --name=4k-sync-write-test
+</code>
+====== Sample output ======
+===== NAS results =====
+<sup>ARM 1.6GHz + WD Green</sup>\\
+Write 10485760000 bytes (10 GB) copied, 143.207 s, **73.2 MB/s**\\
+Read 10485760000 bytes (10 GB) copied, 130.184 s, **95.8 MB/s**\\
+<sup>ARM 1.6GHz + USB3.0 External HDD</sup>\\
+Read and Write, **71/71 MB/s** (ntfs)
+<sup>Raspberry PI4 + USB3.0 External SDD</sup>\\
+Read and Write, **358/217 MB/s** (ext4)
+-----
+===== Vibe Z2 Pro Internal Flash =====
+Sequential Read: **205 MB/s**, Write: **69 MB/s**\\
+Random Read: 12 MB/s (3300 IOPS 4KB), Write: 9 MB/s (2348 IOPS 4KB)
+===== Patriot Zephyr 256GB SSD =====
+Sequential Read: **214 MB/s**, Write: **143 MB/s**\\
+Random Read: 17 MB/s (4567 IOPS 4KB), Write: 12 MB/s (3181 IOPS 4KB)

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