Debian Jessie에서 SSD 읽기가 놀라울 정도로 느립니다.

Debian Jessie에서 SSD 읽기가 놀라울 정도로 느립니다.

나는 다락방에서 9개월을 보낸 후 데스크톱 컴퓨터를 설치했습니다. 이것이 관련이 있는지 의심스럽기는 하지만 이런 식으로 기억되지는 않습니다.

부팅하는 데 6분 정도 걸렸고, GUI 로그인 화면이 나타나는 데 몇 분, 데스크톱 관리자가 표시되는 데 몇 분이 더 걸렸습니다.

hdparm은 다음과 같은 출력을 제공했습니다.

# hdparm -tT /dev/sda
/dev/sda:
 Timing cached reads:     2 MB in  3.75 seconds = 545.64 kB/sec
 Timing buffered disk reads:   2 MB in  4.45 seconds = 459.91 kB/sec

그런 다음 fstrim을 다음과 같이 실행했습니다.

# fstrim -a -v
/home: 23.4 GiB (25130262528 bytes) trimmed
/boot: 397.1 MiB (416373760 bytes) trimmed
/: 5.2 GiB (5628624896 bytes) trimmed

hdparm이 다소 개선되었습니다.

# hdparm -tT /dev/sda
/dev/sda:
 Timing cached reads:   23604 MB in  2.00 seconds = 11811.48 MB/sec
 Timing buffered disk reads:  54 MB in  4.27 seconds =  12.65 MB/sec

smartctl 출력:

# smartctl  -i -A /dev/sda
smartctl 6.4 2014-10-07 r4002 [x86_64-linux-3.16.0-4-amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Samsung based SSDs
Device Model:     Samsung SSD 840 EVO 120GB
Serial Number:    S1D5NSADB80933H
LU WWN Device Id: 5 002538 8a00db98b
Firmware Version: EXT0BB0Q
User Capacity:    120,034,123,776 bytes [120 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4c
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Jun 21 14:20:49 2016 BST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   098   098   000    Old_age   Always       -       7651
 12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       694
177 Wear_Leveling_Count     0x0013   089   089   000    Pre-fail  Always       -       126
179 Used_Rsvd_Blk_Cnt_Tot   0x0013   100   100   010    Pre-fail  Always       -       0
181 Program_Fail_Cnt_Total  0x0032   100   100   010    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   010    Old_age   Always       -       0
183 Runtime_Bad_Block       0x0013   100   100   010    Pre-fail  Always       -       0
187 Uncorrectable_Error_Cnt 0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0032   067   057   000    Old_age   Always       -       33
195 ECC_Error_Rate          0x001a   200   200   000    Old_age   Always       -       0
199 CRC_Error_Count         0x003e   100   100   000    Old_age   Always       -       0
235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       277
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       11878906560

여기서 어디로 가야 합니까?

관련 정보