8g 内存的 MacBook 的磁盘写入量好离谱，我想知道 16g 内存的磁盘写入量是多少

[Mogamigawa]

https://www.zhihu.com/question/579654013/answer/2938281508

在知乎看到一个回答，然后看到这个回答的评论区，由于有 swap 的存在，8g 内存的 MacBook 的磁盘写入量非常大，两年几百 tb 是正常情况，甚至有的是 PB 级别！

所以我想知道 16gb 的 MacBook 的磁盘写入量是多少，麻烦带上使用时间，内存大小，和磁盘写入量

[NotFoundEgg]

21 年 12 月购入的 16G mbp14
```
Critical Warning: 0x00
Temperature: 32 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 7%
Data Units Read: 604,179,289 [309 TB]
Data Units Written: 427,595,404 [218 TB]
Host Read Commands: 13,932,953,557
Host Write Commands: 5,119,232,119
Controller Busy Time: 0
Power Cycles: 281
Power On Hours: 5,802
```

[dilidilid]

四年前就很多人嚷嚷计划报废，现实中能把丐版 SSD 写报废的一千个不知道有没有一个

[holysin]

同 8G+256 ，一年半的使用后数据，感觉还好吧....
https://mjj.today/i/jcO1g8

[intoext]

mbp 13.3 m2 16+512 20 个月的情况

=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 32 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 0%
Data Units Read: 25,621,541 [13.1 TB]
Data Units Written: 20,391,960 [10.4 TB]
Host Read Commands: 431,830,004
Host Write Commands: 348,042,640
Controller Busy Time: 0
Power Cycles: 327
Power On Hours: 360
Unsafe Shutdowns: 7
Media and Data Integrity Errors: 0
Error Information Log Entries: 0

[holysin]

https://ice.frostsky.com/2024/08/09/7957886ac8b23c32a9dbf49939fb77cd.jpeg

[Mogamigawa]

@dilidilid 现在 MacBook 应该是 tlc 芯片吧，我搜了一下，500g 的 tlc 寿命是 300tbw

[niubilewodev]

16+512 的配置，大约 3 年。
Data Units Read: 828,645,231 [424 TB]
Data Units Written: 761,429,651 [389 TB]
上一个 3 年的 16+512 ，也差不多这个水平。

[AastroLula]

m1 mba 8+512 g,从 2021 年 8 月到 20248 月的使用情况：
=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 35 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 3%
Data Units Read: 281,286,508 [144 TB]
Data Units Written: 141,733,836 [72.5 TB]
Host Read Commands: 4,597,762,175
Host Write Commands: 1,210,015,376
Controller Busy Time: 0
Power Cycles: 434
Power On Hours: 1,502
Unsafe Shutdowns: 31
Media and Data Integrity Errors: 0
Error Information Log Entries: 0
看到结果吓一跳

[niubilewodev]

@niubilewodev 3 年前看到写了快 400T ，有点慌，现在一点不慌。

[calano]

@intoext #4 跟我的差不多，想不来那些两三年几百 TB 写入是怎么用的🙃

[dilidilid]

@Mogamigawa 这是一般厂商提供保修的数据量，但实际上目前质量好的原厂 TLC 实际寿命一般都远高于这个数

[rimutuyuan]

16+512 用了 23 个月

SMART overall-health self-assessment test result: PASSED

SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 38 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 1%
Data Units Read: 107,303,385 [54.9 TB]
Data Units Written: 69,187,496 [35.4 TB]
Host Read Commands: 4,407,903,959
Host Write Commands: 1,634,017,390
Controller Busy Time: 0
Power Cycles: 170
Power On Hours: 1,705
Unsafe Shutdowns: 38
Media and Data Integrity Errors: 0
Error Information Log Entries: 0

[chen88ijn]

32+1T ，25 个月
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 36 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 2%
Data Units Read: 29,764,376 [15.2 TB]
Data Units Written: 37,149,526 [19.0 TB]
Host Read Commands: 631,563,971
Host Write Commands: 875,000,624
Controller Busy Time: 0
Power Cycles: 158
Power On Hours: 619
Unsafe Shutdowns: 6
Media and Data Integrity Errors: 0
Error Information Log Entries: 0

[taro0822]

收的二手 mbp m1max 64g+1tb
=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 36 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 1%
Data Units Read: 60,564,724 [31.0 TB]
Data Units Written: 56,841,549 [29.1 TB]
Host Read Commands: 1,771,712,706
Host Write Commands: 1,415,487,065
Controller Busy Time: 0
Power Cycles: 285
Power On Hours: 1,273
Unsafe Shutdowns: 12
Media and Data Integrity Errors: 0
Error Information Log Entries: 0

[taro0822]

不过内存大了之后 swap 使用量确实非常低

[ZTom]

m1pro 去年 6 月买的
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 33 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 1%
Data Units Read: 53,512,540 [27.3 TB]
Data Units Written: 40,090,244 [20.5 TB]
Host Read Commands: 1,203,109,970
Host Write Commands: 824,358,625
Controller Busy Time: 0
Power Cycles: 466
Power On Hours: 824
Unsafe Shutdowns: 20
Media and Data Integrity Errors: 0
Error Information Log Entries: 0

[ZTom]

补充一下上面 m1pro 16+512 去年 6 月买的

[maxwellz]

公司的 m2 16+256 ，swap 基本都挺高的

[chenjies]

知乎上早就有人分析出来，苹果专门设置了一块 SLC 区域用作 Swap ，那块区域的插写次数是 10 万次。

[VictorBot]

m1pro 16g+512 24 年 1 月买的
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 27 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 1%
Data Units Read: 72,351,624 [37.0 TB]
Data Units Written: 40,046,854 [20.5 TB]
Host Read Commands: 1,851,296,807
Host Write Commands: 1,039,748,621
Controller Busy Time: 0
Power Cycles: 244
Power On Hours: 959
Unsafe Shutdowns: 7
Media and Data Integrity Errors: 0
Error Information Log Entries: 0