Linux测试篇 | 存储器读写大文件速度测试

#写
dd if=/dev/zero of=/mnt/largefile bs=1048576 count=1024 conv=sync
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 96.5317 s, 11.1 MB/s
#读
dd if=/mnt/largefile  of=/dev/null conv=sync
2097152+0 records in
2097152+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 40.768 s, 26.3 MB/s