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microsoft / diskspd

DISKSPD is a storage load generator / performance test tool from the Windows/Windows Server and Cloud Server Infrastructure Engineering teams
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Options -Su -c will vastly change speed for non-Admin user when using -r #148

Open VirtualTim opened 3 years ago

VirtualTim commented 3 years ago

Sorry for the wired description, it's kind of a wired issue. Hopefully come command line examples will clear it up.

Non-Admin: diskspd.exe -Su -c2G temp12.dat: 1222 MiB/s ``` WARNING: Error adjusting token privileges for SeManageVolumePrivilege (error code: 1300) WARNING: Could not set privileges for setting valid file size; will use a slower method of preparing the file Command Line: diskspd.exe -Su -c2G temp12.dat Input parameters: timespan: 1 ------------- duration: 10s warm up time: 5s cool down time: 0s random seed: 0 path: 'temp12.dat' think time: 0ms burst size: 0 software cache disabled using hardware write cache, writethrough off performing read test block size: 65536 using sequential I/O (stride: 65536) number of outstanding I/O operations: 2 thread stride size: 0 threads per file: 1 using I/O Completion Ports IO priority: normal System information: computer name: tlander-pc start time: 2021/07/12 05:32:40 UTC Results for timespan 1: ******************************************************************************* actual test time: 10.01s thread count: 1 proc count: 16 CPU | Usage | User | Kernel | Idle ------------------------------------------- 0| 38.75%| 3.91%| 34.84%| 61.25% 1| 1.72%| 1.40%| 0.31%| 98.28% 2| 7.03%| 4.69%| 2.34%| 92.97% 3| 0.78%| 0.16%| 0.63%| 99.22% 4| 3.13%| 2.66%| 0.47%| 96.88% 5| 1.41%| 0.94%| 0.47%| 98.59% 6| 5.00%| 4.06%| 0.94%| 95.00% 7| 2.66%| 2.50%| 0.16%| 97.34% 8| 2.81%| 2.19%| 0.63%| 97.19% 9| 1.88%| 1.25%| 0.63%| 98.13% 10| 2.81%| 2.66%| 0.16%| 97.19% 11| 2.50%| 2.34%| 0.16%| 97.50% 12| 0.78%| 0.31%| 0.47%| 99.22% 13| 2.03%| 1.25%| 0.78%| 97.97% 14| 1.41%| 0.16%| 1.25%| 98.59% 15| 3.28%| 2.03%| 1.25%| 96.72% ------------------------------------------- avg.| 4.87%| 2.03%| 2.84%| 95.13% Total IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 12832276480 | 195805 | 1222.34 | 19557.49 | temp12.dat (2048MiB) ------------------------------------------------------------------------------ total: 12832276480 | 195805 | 1222.34 | 19557.49 Read IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 12832276480 | 195805 | 1222.34 | 19557.49 | temp12.dat (2048MiB) ------------------------------------------------------------------------------ total: 12832276480 | 195805 | 1222.34 | 19557.49 Write IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 0 | 0 | 0.00 | 0.00 | temp12.dat (2048MiB) ------------------------------------------------------------------------------ total: 0 | 0 | 0.00 | 0.00 ```
Non-Admin: diskspd.exe -Su -r4b -c2G temp12.dat: 645 MiB/s ``` WARNING: Error adjusting token privileges for SeManageVolumePrivilege (error code: 1300) WARNING: Could not set privileges for setting valid file size; will use a slower method of preparing the file Command Line: diskspd.exe -Su -r4b -c2G temp12.dat Input parameters: timespan: 1 ------------- duration: 10s warm up time: 5s cool down time: 0s random seed: 0 path: 'temp12.dat' think time: 0ms burst size: 0 software cache disabled using hardware write cache, writethrough off performing read test block size: 65536 using random I/O (alignment: 262144) number of outstanding I/O operations: 2 thread stride size: 0 threads per file: 1 using I/O Completion Ports IO priority: normal System information: computer name: tlander-pc start time: 2021/07/12 05:31:57 UTC Results for timespan 1: ******************************************************************************* actual test time: 10.01s thread count: 1 proc count: 16 CPU | Usage | User | Kernel | Idle ------------------------------------------- 0| 23.56%| 3.59%| 19.97%| 76.44% 1| 1.87%| 1.40%| 0.47%| 98.13% 2| 8.11%| 6.08%| 2.03%| 91.89% 3| 0.62%| 0.47%| 0.16%| 99.38% 4| 3.59%| 2.81%| 0.78%| 96.41% 5| 2.03%| 1.40%| 0.62%| 97.97% 6| 2.34%| 1.87%| 0.47%| 97.66% 7| 2.65%| 2.02%| 0.62%| 97.35% 8| 1.72%| 1.40%| 0.31%| 98.28% 9| 3.12%| 2.81%| 0.31%| 96.88% 10| 1.09%| 0.78%| 0.31%| 98.91% 11| 4.52%| 4.37%| 0.16%| 95.48% 12| 1.87%| 0.47%| 1.40%| 98.13% 13| 1.56%| 0.47%| 1.09%| 98.44% 14| 1.25%| 0.16%| 1.09%| 98.75% 15| 2.50%| 1.09%| 1.40%| 97.50% ------------------------------------------- avg.| 3.90%| 1.95%| 1.95%| 96.10% Total IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 6773342208 | 103353 | 645.24 | 10323.76 | temp12.dat (2048MiB) ------------------------------------------------------------------------------ total: 6773342208 | 103353 | 645.24 | 10323.76 Read IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 6773342208 | 103353 | 645.24 | 10323.76 | temp12.dat (2048MiB) ------------------------------------------------------------------------------ total: 6773342208 | 103353 | 645.24 | 10323.76 Write IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 0 | 0 | 0.00 | 0.00 | temp12.dat (2048MiB) ------------------------------------------------------------------------------ total: 0 | 0 | 0.00 | 0.00 ```

This behaviour does not occur with an Admin user. Both runs got ~1300 MiB/s.

Admin: diskspd.exe -Su -c2G temp22.dat: 1340 MiB/s ``` Command Line: diskspd.exe -Su -c2G temp22.dat Input parameters: timespan: 1 ------------- duration: 10s warm up time: 5s cool down time: 0s random seed: 0 path: 'temp22.dat' think time: 0ms burst size: 0 software cache disabled using hardware write cache, writethrough off performing read test block size: 65536 using sequential I/O (stride: 65536) number of outstanding I/O operations: 2 thread stride size: 0 threads per file: 1 using I/O Completion Ports IO priority: normal System information: computer name: tlander-pc start time: 2021/07/12 06:01:07 UTC Results for timespan 1: ******************************************************************************* actual test time: 10.00s thread count: 1 proc count: 16 CPU | Usage | User | Kernel | Idle ------------------------------------------- 0| 45.78%| 3.91%| 41.88%| 54.22% 1| 2.19%| 2.03%| 0.16%| 97.81% 2| 6.09%| 3.13%| 2.97%| 93.91% 3| 1.72%| 1.25%| 0.47%| 98.28% 4| 2.03%| 1.88%| 0.16%| 97.97% 5| 4.22%| 4.22%| 0.00%| 95.78% 6| 1.25%| 1.09%| 0.16%| 98.75% 7| 3.75%| 3.13%| 0.63%| 96.25% 8| 1.56%| 1.09%| 0.47%| 98.44% 9| 3.91%| 2.97%| 0.94%| 96.09% 10| 2.97%| 2.19%| 0.78%| 97.03% 11| 1.72%| 1.41%| 0.31%| 98.28% 12| 2.03%| 0.94%| 1.09%| 97.97% 13| 2.34%| 0.63%| 1.72%| 97.66% 14| 1.88%| 1.56%| 0.31%| 98.13% 15| 2.97%| 1.25%| 1.72%| 97.03% ------------------------------------------- avg.| 5.40%| 2.04%| 3.36%| 94.60% Total IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 14060027904 | 214539 | 1340.54 | 21448.62 | temp22.dat (2048MiB) ------------------------------------------------------------------------------ total: 14060027904 | 214539 | 1340.54 | 21448.62 Read IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 14060027904 | 214539 | 1340.54 | 21448.62 | temp22.dat (2048MiB) ------------------------------------------------------------------------------ total: 14060027904 | 214539 | 1340.54 | 21448.62 Write IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 0 | 0 | 0.00 | 0.00 | temp22.dat (2048MiB) ------------------------------------------------------------------------------ total: 0 | 0 | 0.00 | 0.00 ```
Admin: diskspd.exe -Su -r4b -c2G temp22.dat: 1290 MiB/s ``` Command Line: diskspd.exe -Su -r4b -c2G temp22.dat Input parameters: timespan: 1 ------------- duration: 10s warm up time: 5s cool down time: 0s random seed: 0 path: 'temp22.dat' think time: 0ms burst size: 0 software cache disabled using hardware write cache, writethrough off performing read test block size: 65536 using random I/O (alignment: 262144) number of outstanding I/O operations: 2 thread stride size: 0 threads per file: 1 using I/O Completion Ports IO priority: normal System information: computer name: tlander-pc start time: 2021/07/12 06:01:39 UTC Results for timespan 1: ******************************************************************************* actual test time: 10.01s thread count: 1 proc count: 16 CPU | Usage | User | Kernel | Idle ------------------------------------------- 0| 40.47%| 4.84%| 35.63%| 59.53% 1| 1.56%| 0.63%| 0.94%| 98.44% 2| 4.22%| 2.66%| 1.56%| 95.78% 3| 2.03%| 2.03%| 0.00%| 97.97% 4| 2.34%| 2.03%| 0.31%| 97.66% 5| 6.09%| 5.47%| 0.63%| 93.91% 6| 2.03%| 1.56%| 0.47%| 97.97% 7| 4.06%| 3.44%| 0.63%| 95.94% 8| 2.81%| 1.88%| 0.94%| 97.19% 9| 3.28%| 2.81%| 0.47%| 96.72% 10| 3.75%| 2.81%| 0.94%| 96.25% 11| 1.72%| 1.41%| 0.31%| 98.28% 12| 4.22%| 2.81%| 1.41%| 95.78% 13| 2.34%| 0.31%| 2.03%| 97.66% 14| 3.59%| 2.66%| 0.94%| 96.41% 15| 5.31%| 2.97%| 2.34%| 94.69% ------------------------------------------- avg.| 5.62%| 2.52%| 3.10%| 94.38% Total IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 13538885632 | 206587 | 1290.11 | 20641.78 | temp22.dat (2048MiB) ------------------------------------------------------------------------------ total: 13538885632 | 206587 | 1290.11 | 20641.78 Read IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 13538885632 | 206587 | 1290.11 | 20641.78 | temp22.dat (2048MiB) ------------------------------------------------------------------------------ total: 13538885632 | 206587 | 1290.11 | 20641.78 Write IO thread | bytes | I/Os | MiB/s | I/O per s | file ------------------------------------------------------------------------------ 0 | 0 | 0 | 0.00 | 0.00 | temp22.dat (2048MiB) ------------------------------------------------------------------------------ total: 0 | 0 | 0.00 | 0.00 ```
dl2n commented 3 years ago

This one is less obvious at first glance.

However, I noticed that the slower of the non-admin runs ran before the fast one (opposite to how you’re showing them). Note the timestamps? Are the results consistent and independent of the order you run them in, do they reproduce if you simply re-run each case twice, and/or do they reproduce if you warm up for a longer period of time (say 60s)?

Sent from Mailhttps://go.microsoft.com/fwlink/?LinkId=550986 for Windows 10

From: Tim @.> Sent: Sunday, July 11, 2021 11:06 PM To: @.> Cc: @.***> Subject: [microsoft/diskspd] Options -Su -c will vastly change speed for non-Admin user when using -r (#148)

Sorry for the wired description, it's kind of a wired issue. Hopefully come command line examples will clear it up. Non-Admin: diskspd.exe -Su -c2G temp12.dat: 1222 MiB/s

WARNING: Error adjusting token privileges for SeManageVolumePrivilege (error code: 1300)

WARNING: Could not set privileges for setting valid file size; will use a slower method of preparing the file

Command Line: diskspd.exe -Su -c2G temp12.dat

Input parameters:

    timespan:   1

    -------------

    duration: 10s

    warm up time: 5s

    cool down time: 0s

    random seed: 0

    path: 'temp12.dat'

            think time: 0ms

            burst size: 0

            software cache disabled

            using hardware write cache, writethrough off

            performing read test

            block size: 65536

            using sequential I/O (stride: 65536)

            number of outstanding I/O operations: 2

            thread stride size: 0

            threads per file: 1

            using I/O Completion Ports

            IO priority: normal

System information:

    computer name: tlander-pc

    start time: 2021/07/12 05:32:40 UTC

Results for timespan 1:

actual test time: 10.01s

thread count: 1

proc count: 16

CPU | Usage | User | Kernel | Idle

0| 38.75%| 3.91%| 34.84%| 61.25%

1| 1.72%| 1.40%| 0.31%| 98.28%

2| 7.03%| 4.69%| 2.34%| 92.97%

3| 0.78%| 0.16%| 0.63%| 99.22%

4| 3.13%| 2.66%| 0.47%| 96.88%

5| 1.41%| 0.94%| 0.47%| 98.59%

6| 5.00%| 4.06%| 0.94%| 95.00%

7| 2.66%| 2.50%| 0.16%| 97.34%

8| 2.81%| 2.19%| 0.63%| 97.19%

9| 1.88%| 1.25%| 0.63%| 98.13%

10| 2.81%| 2.66%| 0.16%| 97.19%

11| 2.50%| 2.34%| 0.16%| 97.50%

12| 0.78%| 0.31%| 0.47%| 99.22%

13| 2.03%| 1.25%| 0.78%| 97.97%

14| 1.41%| 0.16%| 1.25%| 98.59%

15| 3.28%| 2.03%| 1.25%| 96.72%

avg.| 4.87%| 2.03%| 2.84%| 95.13%

Total IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |     12832276480 |       195805 |    1222.34 |   19557.49 | temp12.dat (2048MiB)

total: 12832276480 | 195805 | 1222.34 | 19557.49

Read IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |     12832276480 |       195805 |    1222.34 |   19557.49 | temp12.dat (2048MiB)

total: 12832276480 | 195805 | 1222.34 | 19557.49

Write IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |               0 |            0 |       0.00 |       0.00 | temp12.dat (2048MiB)

total: 0 | 0 | 0.00 | 0.00 Non-Admin: diskspd.exe -Su -r4b -c2G temp12.dat: 645 MiB/s

WARNING: Error adjusting token privileges for SeManageVolumePrivilege (error code: 1300)

WARNING: Could not set privileges for setting valid file size; will use a slower method of preparing the file

Command Line: diskspd.exe -Su -r4b -c2G temp12.dat

Input parameters:

    timespan:   1

    -------------

    duration: 10s

    warm up time: 5s

    cool down time: 0s

    random seed: 0

    path: 'temp12.dat'

            think time: 0ms

            burst size: 0

            software cache disabled

            using hardware write cache, writethrough off

            performing read test

            block size: 65536

            using random I/O (alignment: 262144)

            number of outstanding I/O operations: 2

            thread stride size: 0

            threads per file: 1

            using I/O Completion Ports

            IO priority: normal

System information:

    computer name: tlander-pc

    start time: 2021/07/12 05:31:57 UTC

Results for timespan 1:

actual test time: 10.01s

thread count: 1

proc count: 16

CPU | Usage | User | Kernel | Idle

0| 23.56%| 3.59%| 19.97%| 76.44%

1| 1.87%| 1.40%| 0.47%| 98.13%

2| 8.11%| 6.08%| 2.03%| 91.89%

3| 0.62%| 0.47%| 0.16%| 99.38%

4| 3.59%| 2.81%| 0.78%| 96.41%

5| 2.03%| 1.40%| 0.62%| 97.97%

6| 2.34%| 1.87%| 0.47%| 97.66%

7| 2.65%| 2.02%| 0.62%| 97.35%

8| 1.72%| 1.40%| 0.31%| 98.28%

9| 3.12%| 2.81%| 0.31%| 96.88%

10| 1.09%| 0.78%| 0.31%| 98.91%

11| 4.52%| 4.37%| 0.16%| 95.48%

12| 1.87%| 0.47%| 1.40%| 98.13%

13| 1.56%| 0.47%| 1.09%| 98.44%

14| 1.25%| 0.16%| 1.09%| 98.75%

15| 2.50%| 1.09%| 1.40%| 97.50%

avg.| 3.90%| 1.95%| 1.95%| 96.10%

Total IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |      6773342208 |       103353 |     645.24 |   10323.76 | temp12.dat (2048MiB)

total: 6773342208 | 103353 | 645.24 | 10323.76

Read IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |      6773342208 |       103353 |     645.24 |   10323.76 | temp12.dat (2048MiB)

total: 6773342208 | 103353 | 645.24 | 10323.76

Write IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |               0 |            0 |       0.00 |       0.00 | temp12.dat (2048MiB)

total: 0 | 0 | 0.00 | 0.00

This behaviour does not occur with an Admin user. Both runs got ~1300 MiB/s. Admin: diskspd.exe -Su -c2G temp12.dat: 1340 MiB/s

Command Line: diskspd.exe -Su -c2G temp22.dat

Input parameters:

    timespan:   1

    -------------

    duration: 10s

    warm up time: 5s

    cool down time: 0s

    random seed: 0

    path: 'temp22.dat'

            think time: 0ms

            burst size: 0

            software cache disabled

            using hardware write cache, writethrough off

            performing read test

            block size: 65536

            using sequential I/O (stride: 65536)

            number of outstanding I/O operations: 2

            thread stride size: 0

            threads per file: 1

            using I/O Completion Ports

            IO priority: normal

System information:

    computer name: tlander-pc

    start time: 2021/07/12 06:01:07 UTC

Results for timespan 1:

actual test time: 10.00s

thread count: 1

proc count: 16

CPU | Usage | User | Kernel | Idle

0| 45.78%| 3.91%| 41.88%| 54.22%

1| 2.19%| 2.03%| 0.16%| 97.81%

2| 6.09%| 3.13%| 2.97%| 93.91%

3| 1.72%| 1.25%| 0.47%| 98.28%

4| 2.03%| 1.88%| 0.16%| 97.97%

5| 4.22%| 4.22%| 0.00%| 95.78%

6| 1.25%| 1.09%| 0.16%| 98.75%

7| 3.75%| 3.13%| 0.63%| 96.25%

8| 1.56%| 1.09%| 0.47%| 98.44%

9| 3.91%| 2.97%| 0.94%| 96.09%

10| 2.97%| 2.19%| 0.78%| 97.03%

11| 1.72%| 1.41%| 0.31%| 98.28%

12| 2.03%| 0.94%| 1.09%| 97.97%

13| 2.34%| 0.63%| 1.72%| 97.66%

14| 1.88%| 1.56%| 0.31%| 98.13%

15| 2.97%| 1.25%| 1.72%| 97.03%

avg.| 5.40%| 2.04%| 3.36%| 94.60%

Total IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |     14060027904 |       214539 |    1340.54 |   21448.62 | temp22.dat (2048MiB)

total: 14060027904 | 214539 | 1340.54 | 21448.62

Read IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |     14060027904 |       214539 |    1340.54 |   21448.62 | temp22.dat (2048MiB)

total: 14060027904 | 214539 | 1340.54 | 21448.62

Write IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |               0 |            0 |       0.00 |       0.00 | temp22.dat (2048MiB)

total: 0 | 0 | 0.00 | 0.00 Admin: diskspd.exe -Su -r4b -c2G temp12.dat: 1290 MiB/s

Command Line: diskspd.exe -Su -r4b -c2G temp22.dat

Input parameters:

    timespan:   1

    -------------

    duration: 10s

    warm up time: 5s

    cool down time: 0s

    random seed: 0

    path: 'temp22.dat'

            think time: 0ms

            burst size: 0

            software cache disabled

            using hardware write cache, writethrough off

            performing read test

            block size: 65536

            using random I/O (alignment: 262144)

            number of outstanding I/O operations: 2

            thread stride size: 0

            threads per file: 1

            using I/O Completion Ports

            IO priority: normal

System information:

    computer name: tlander-pc

    start time: 2021/07/12 06:01:39 UTC

Results for timespan 1:

actual test time: 10.01s

thread count: 1

proc count: 16

CPU | Usage | User | Kernel | Idle

0| 40.47%| 4.84%| 35.63%| 59.53%

1| 1.56%| 0.63%| 0.94%| 98.44%

2| 4.22%| 2.66%| 1.56%| 95.78%

3| 2.03%| 2.03%| 0.00%| 97.97%

4| 2.34%| 2.03%| 0.31%| 97.66%

5| 6.09%| 5.47%| 0.63%| 93.91%

6| 2.03%| 1.56%| 0.47%| 97.97%

7| 4.06%| 3.44%| 0.63%| 95.94%

8| 2.81%| 1.88%| 0.94%| 97.19%

9| 3.28%| 2.81%| 0.47%| 96.72%

10| 3.75%| 2.81%| 0.94%| 96.25%

11| 1.72%| 1.41%| 0.31%| 98.28%

12| 4.22%| 2.81%| 1.41%| 95.78%

13| 2.34%| 0.31%| 2.03%| 97.66%

14| 3.59%| 2.66%| 0.94%| 96.41%

15| 5.31%| 2.97%| 2.34%| 94.69%

avg.| 5.62%| 2.52%| 3.10%| 94.38%

Total IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |     13538885632 |       206587 |    1290.11 |   20641.78 | temp22.dat (2048MiB)

total: 13538885632 | 206587 | 1290.11 | 20641.78

Read IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |     13538885632 |       206587 |    1290.11 |   20641.78 | temp22.dat (2048MiB)

total: 13538885632 | 206587 | 1290.11 | 20641.78

Write IO

thread | bytes | I/Os | MiB/s | I/O per s | file

 0 |               0 |            0 |       0.00 |       0.00 | temp22.dat (2048MiB)

total: 0 | 0 | 0.00 | 0.00

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VirtualTim commented 3 years ago

diskspd.exe -Su -r4b -c2G temp13.dat run 4 times in a row:

  1. 596.53 MiB/s
  2. 625.00 MiB/s
  3. 631.94 MiB/s
  4. 504.62 MiB/s

diskspd.exe -Su -c2G temp14.dat run 4 times in a row (after the above, but also using a different file):

  1. 996.80 MiB/s
  2. 1304.05 MiB/s
  3. 984.27 MiB/s
  4. 1340.03 MiB/s

diskspd.exe -Su -r4b -c2G temp13.dat run once again (after the above)

  1. 587.89 MiB/s
dl2n commented 3 years ago

Is this being run on a multi-socket system?

VirtualTim commented 3 years ago

No, single processor, an i7-10700.