Sandisk Cruzer Fit (B35) 32GB Zwart

Na acht ultra kleine USB-sticks getest te hebben vindt ik de random schrijfsnelheid voor 4K blokken nog steeds vrij laag, desondanks is de Cruzer Fit de op één na minst slechte keuze. Alleen de SanDisk Cruzer Ultra Fit schrijft 4K blokken sneller.

Energieverbruik standby

26,4 mA / 135 mW
[img]pjsfxN6I[/img]

Prestaties: dd

$ dd if=/dev/zero of=emptybunchofzeros.bin bs=1048576 count=4096
6,89 megabytes/sec

Prestaties: Xbench

Uncached

Sequential - write

4K blocks: 8,20 MB/sec
256K blocks: 5,36 MB/sec

Sequential - read

4K blocks: 4,76 MB/sec
256K blocks: 23,52 MB/sec

Random - write

4K blocks: 1,43 MB/sec
256K blocks: 0,41 MB/sec

Random - read

4K blocks: 3,80 MB/sec
256K blocks: 23,11 MB/sec

flashbench

$ sudo flashbench -a /dev/sda --blocksize=1024
align 8589934592 pre 735µs on 1.09ms post 645µs diff 395µs
align 4294967296 pre 797µs on 1.28ms post 650µs diff 555µs
align 2147483648 pre 796µs on 1.27ms post 648µs diff 548µs
align 1073741824 pre 824µs on 1.31ms post 671µs diff 564µs
align 536870912 pre 823µs on 1.31ms post 674µs diff 564µs
align 268435456 pre 821µs on 1.32ms post 675µs diff 569µs
align 134217728 pre 821µs on 1.31ms post 673µs diff 567µs
align 67108864 pre 822µs on 1.31ms post 673µs diff 566µs
align 33554432 pre 819µs on 1.31ms post 671µs diff 569µs
align 16777216 pre 815µs on 1.3ms post 669µs diff 562µs
align 8388608 pre 816µs on 1.31ms post 668µs diff 564µs
align 4194304 pre 792µs on 1.2ms post 761µs diff 424µs
align 2097152 pre 817µs on 856µs post 817µs diff 38.9µs
align 1048576 pre 817µs on 853µs post 814µs diff 38µs
align 524288 pre 674µs on 710µs post 668µs diff 38.8µs
align 262144 pre 669µs on 709µs post 672µs diff 38.7µs
align 131072 pre 675µs on 710µs post 665µs diff 39.5µs
align 65536 pre 668µs on 710µs post 673µs diff 39.7µs
align 32768 pre 674µs on 709µs post 668µs diff 38.3µs
align 16384 pre 667µs on 711µs post 672µs diff 41µs
align 8192 pre 665µs on 684µs post 668µs diff 16.9µs
align 4096 pre 666µs on 685µs post 668µs diff 17.7µs
align 2048 pre 668µs on 681µs post 665µs diff 14.8µs

open AUs

Random: 8

$ sudo flashbench -O --erasesize=$[4 * 1024 * 1024] --blocksize=$[256 * 1024] /dev/sda --open-au-nr=8 --random
4MiB 17.8M/s
2MiB 22M/s
1MiB 22M/s
512KiB 20M/s
256KiB 9.8M/s

$ sudo flashbench -O --erasesize=$[4 * 1024 * 1024] --blocksize=$[256 * 1024] /dev/sda --open-au-nr=9 --random
4MiB 8.83M/s
2MiB 7.95M/s
1MiB 3.54M/s
512KiB 3.01M/s
256KiB 1.67M/s