ssd硬盘 速度慢 linux [已解决] NVMe SSD速度非常慢

SSD为 intel 760p 256G

OS: Manjaro 18.0.4 Illyria

Kernel: x86_64 Linux 4.19.56-1-MANJARO

机器：NUC8i5BEH

fio测试结果：

~  fio -rw=write -ioengine=libaio -thread -direct=1 -iodepth=64 -filename=test -size=5G -bs=4k -name=job1 -offset=0G

job1: (g=0): rw=write, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=64

fio-3.14

Starting 1 thread

job1: Laying out IO file (1 file / 5120MiB)

Jobs: 1 (f=1): [W(1)][100.0%][w=251MiB/s][w=64.2k IOPS][eta 00m:00s]

job1: (groupid=0, jobs=1): err= 0: pid=7067: Tue Jul 9 01:24:36

write: IOPS=74.2k, BW=290MiB/s (304MB/s)(5120MiB/17658msec); 0 zone resets

slat (usec): min=3, max=11994, avg= 9.87, stdev=42.11

clat (usec): min=53, max=56208, avg=