![]() name=4kQD32read -bs=4k -iodepth=32 -rw=randread \ because the filesystems being compared might not be the same).Īn example based on replicating the output in the screenshot above supplemented by information from the CrystalDiskMark manual (this isn't complete but should give the general idea): fio -loops=5 -size=1000m -filename=/mnt/fs/fiotest.tmp -stonewall -ioengine=libaio -direct=1 \ As such it will always have filesystem overhead in it (not necessarily a bad thing but something to be aware of e.g. Note that despite its name CrystalDiskMark is actually a benchmark of a filesysystem on a particular disk - it can't do I/O raw to the disk alone. I'd say fio would have no trouble producing those workloads. For my particular benchmarking see my other question. So this is the only motivation for the question. While surfing in the web about ssd's and benchmarking I have often seen users posting their CrystelDiskMark results in forums. But that's another question ( Best way to benchmark different encryption solutions on my system). LC_ALL=C dd if=tempfile of=/dev/null bs=1M count=1024īut I am not sure about the dd parameters.įor the random 512KB, 4KB, 4KB (Queue Depth=32) reads/writes speed-tests I don't have any idea how to reproduce the measurements in linux? So how can I do this?įor testing reading speeds something like sudo hdparm -Tt /dev/sda doesn't seem to make sense for me since I want for example benchmark something like encfs I should write something about the motivation about this question: I am trying to benchmark my ssd and compare some encryption solutions. Sudo su -c "echo 3 > /proc/sys/vm/drop_caches" So how can I measure approximately the same things as crystaldiskmark does?įor the first row (Seq) I think I could do something like LC_ALL=C dd if=/dev/zero of=tempfile bs=1M count=1024 conv=fdatasync,notrunc Benchmark: PassMark PerformanceTest 9.I want to benchmark a ssd (possibly with encrypted filesystems) and compare it to benchmarks done by crystaldiskmark on windows. Introduction, Packaging, SpecificationsĨ. For some context, the mainstream Crucial MX500 500GB had results of 155.76MB/s, 434.76MB/s, 488.07MB/s, and 73.11MB/s, in the same respective order.ġ. Finally, the Gigabyte UD PRO 256GB had better numbers in three of the four tests at 100.34MB/s, 307.69MB/s, 447.29MB/s, and 65.47MB/s speeds. The Kingston UV500 240GB posted better numbers in all tests with scores of 76.80MB/s, 343.02MB/s, 422.85MB/s, and 80.60MB/s. For comparison's sake, another budget drive, the Crucial BX500 480GB, provided results of 23.93MB/s, 152.34MB/s, 394.95MB/s, and 58.10MB/s. With results of 18.84MB/s, 142.98MB/s, 407.72MB/s, and 65.94MB/s, these revealed the budget nature of the P200. Overall, the Patriot P200 512GB performance was underwhelming to say the least. However, it also requires high IOPS capabilities for the best score. Obviously, PassMark PerformanceTest 9.0 uses highly compressible data in most tests some controllers can really take advantage of. To make things clear to you, the first graph simulates a database server, followed by a file server, web server, and workstation. It also provides valuable insight in simulating real world performance applications. PassMark PerformanceTest 9.0's Advanced Disk Test generates some superb graphs right out of the box. The results of all completed tests may be graphed using our custom graphing components. Sequential or random access (seeking plus reading and writing) The choice of four access methods - C/C++ API, Win32 API cached / uncached and raw disk access. Larger blocks mean less requests and can lead to an improvement in performance. The size of the data block used for each read or write request. Larger files mean that the system cache has less of an effect on the test types, which use caching (see below). Users have the ability to test multiple drives at the same time using multiple threads, and specify: Including IDE drives, SCSI, RAID, USB key drives, SATA, networked shared drives and external drives. The test supports any drive that can be mounted under Windows. There are quite a few factors which have a bearing on this speed and the Advanced Disk Drive Test allows the user to vary most of these factors and compare the results. The speed that data can be transferred between memory and a hard disk drive is one of a system's most important performance aspects. This Advanced Disk Test, which is part of PerformanceTest, measures the data transfer speed when reading or writing data to one or more disks. Benchmark: PassMark PerformanceTest 9.0
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