首先感谢Hao Chen博客记录的内容。笔者对于DiskSim没有接触，第一次成功安装全是按照前人博客完成。相对而言DiskSim + SSD extent的编译流程还是比较复杂，设计源码和make文件的大量改动。前人栽树后人乘凉，已经有现成的patch文件，避免了我们手动改动代码，不仅耗时还容易出错。

再次感谢！！

笔者使用的系统介绍：centos7.6-64bit，内核版本5.8.6，编译器为4.8.5

安装依赖

  • linux 如没安装flex、bison的话，先要安装。
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$sudo yum install bison flex -y
  • 下载源码包

disksim 4.0: http://www.pdl.cmu.edu/DiskSim/
SSD extension: http://research.microsoft.com/en-us/downloads/b41019e2-1d2b-44d8-b512-ba35ab814cd4/

解压安装包

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$ tar xfz disksim-4.0-with-dixtrac.tar.gz
$ cd disksim-4.0
$ unzip ../ssd-add-on.zip

补丁

补丁为：从Hao Chen的github上下载的相关patch文件。

点击链接，下载 ‘modify-patch’ 和 ‘64bit-patch’。下载好后将 modify-patch 和 64bit-patch 这两个文件都放到 disksim-4.0 路径下。

step1. 集成 ssdmodel

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patch -p1 < ssdmodel/ssd-patch

step2. 修改文件

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patch -p1 < modify-patch

如果只想在 32 位系统上运行的话，step3可以跳过，直接 make 就行了。

step3. 兼容64位的补丁

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patch -p1 < 64bit-patch

make

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$ make

运行

step1. 测试disksim能否顺利执行。

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$ cd valid
$ ./runvalid

正常运行，输出如下：

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These results represent actual drive validation experiments

QUANTUM_QM39100TD-SW (rms should be about 0.378)
rms = 0.378078

SEAGATE_ST32171W (rms should be about 0.349)
rms = 0.347863

SEAGATE_ST34501N (rms should be about 0.318)
rms = 0.318228

SEAGATE_ST39102LW (rms should be about 0.107)
rms = 0.107098

step2. 测试ssd extension的脚本能否顺利执行。

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$ chmod a+x ../ssdmodel/valid/runvalid
$ cd ../ssdmodel/valid
$ ./runvalid

正常运行，输出如下：

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---Running tests with the synthetic workload generator---

Sequential read (250K I/Os): average SSD response time should be around 0.132 ms
ssd Response time average:     0.132511
Sequential write (250K I/Os): average SSD response time should be around 0.310 ms
ssd Response time average:     0.310895
Sequential write (5M I/Os): average SSD response time should be around 0.334 ms
ssd Response time average:     0.334365
Random read (250K I/Os): average SSD response time should be around 0.136 ms
ssd Response time average:     0.136118
Random write (250K I/Os): average SSD response time should be around 0.329 ms
ssd Response time average:     0.329458
Random write (5M I/Os): average SSD response time should be around 0.593 ms
ssd Response time average:     0.593438
---Running tests with the real traces---

IOzone: average SSD response time should be around 6.394276 ms
ssd Response time average:     6.394276
Postmark: average SSD response time should be around 4.140330 ms
ssd Response time average:     4.140330