TESTA A measure of how quickly multiple small files can be read from a device.
4K random read is a disk access pattern whereby small (4K) blocks of data are read from random locations on the surface of the device being tested at a queue depth of one. The term is used primarily within the context of benchmarking and the speed which it is usually measured in, MBps, can be thought of as how effective a device is at quickly retrieving small pieces of data from random locations. This type of access pattern is very common during operating system startup, where lots of configuration and driver files must be read from the disk. Drives that are used to host operating systems will perform much better if they are able to sustain high random read speeds. As a rule of thumb approximately 20% of a typical users overall disk access on a PC will consist of random reads.
4K random read is a disk access pattern whereby small (4K) blocks of data are read from random locations on the surface of the device being tested at a queue depth of one. The term is used primarily within the context of benchmarking and the speed which it is usually measured in, MBps, can be thought of as how effective a device is at quickly retrieving small pieces of data from random locations. This type of access pattern is very common during operating system startup, where lots of configuration and driver files must be read from the disk. Drives that are used to host operating systems will perform much better if they are able to sustain high random read speeds. As a rule of thumb approximately 20% of a typical users overall disk access on a PC will consist of random reads.
2021 Hardware Rankings
 PC Score |
PC Status |
|
|---|---|---|
| 4 secs agoDefault string | Battleship | 51% |
| 6 secs agoB350 GAMING PLUS (MS-7A34) | Nuclear submarine | 75% |
| 7 secs agoAsus ROG STRIX Z390-F GAMING | Nuclear submarine | 39% |
| 8 secs agoGigabyte GA-78LMT-S2P | Destroyer | 42% |
| 12 secs agoDell OptiPlex 9020 | Battleship | 52% |
| 12 secs agoIntel X79 | Aircraft carrier | 55% |
| 17 secs agoGigabyte GA-78LMT-USB3 6.0 | Battleship | 42% |
| 28 secs agoLenovo 90Q8004TMW | Tree trunk | 74% |
| 29 secs agoHP Z420 Workstation | Battleship | 52% |
| 29 secs agoHP 870-114nf | Aircraft carrier | 60% |
| 30 secs agoMPG X570 GAMING PLUS (MS-7C3... | Nuclear submarine | 65% |
| 34 secs agoAsus Z170I PRO GAMING | Aircraft carrier | 68% |
| 39 secs agoAcer Aspire X3812 | Speed boat | 44% |
| 44 secs agoHP Compaq Pro 6305 SFF | Yacht | 57% |
| 49 secs agoDell Inspiron 7506 2n1 | Tree trunk | 60% |
| 50 secs agoMSI Z270 TOMAHAWK (MS-7A68) | UFO | 72% |
| 53 secs agoHP ProLiant DL380 G7 | Tree trunk | 18% |
| 54 secs agoBiostar H410MH | Aircraft carrier | 50% |
| 56 secs agoROG STRIX B450-F GAMING II | Aircraft carrier | 64% |
| 1 min agoMSI MS-1759 | Gunboat | 45% |