[LU-15367] Add ability for multiop to take input from a file

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Assignee: Patrick Farrell
• Reporter: Patrick Farrell

Description

Multiop has the potential to be really useful as an I/O pattern simulator, in that it can perform almost any operation.  In theory, we could process iotrace logs from a user application, and then generate command strings for multiop.  This works great, but we very quickly run in to the limit of the maximum command input size (the shell limit).

So, add the ability for multiop to take command input from a file.  This is implemented a little awkwardly in order to make it entirely optional and not change the many existing tests using multiop.

Issue Links

• is duplicated by: LU-16306 using multiop to simulate I/O call sequence parsing from Lustre debug log
• is related to: LU-15317 add iotrace debug

Comments

[Gerrit Updater]

"Patrick Farrell <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/52134
Subject: LU-15367 tests: Combined patches
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 71cf18c7d05b3428fb04c5e3cba28caab0ae7d20

[Gerrit Updater]

"Patrick Farrell <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/52007
Subject: LU-15367 llite: add 'rc' to all iotrace messages
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 0ad66d9d892f67fcb3ddd6cf9102541d06fc7f2f

[Gerrit Updater]

"Patrick Farrell <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/52006
Subject: LU-15367 llite: add iotrace to open/release
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 49da969b2baef192c6b998c663d8fcc75fb89ae8

[Gerrit Updater]

"Patrick Farrell <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/52005
Subject: LU-15367 llite: add setattr to iotrace
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 5f009934bd1a7f260cb96dd93f5b45f6ead30529

[Gerrit Updater]

"Patrick Farrell <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/52004
Subject: LU-15367 llite: add lseek to iotrace
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: c031ccde98f17399acc193564aa60e969d6f88c2

[Gerrit Updater]

"Patrick Farrell <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/52002
Subject: LU-15367 llite: iotrace standardization
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 2300f16a2a0c6182d47d02dd02096ee39559f00c

[Gerrit Updater]

"Patrick Farrell <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/46810
Subject: LU-15367 tests: Multiop allow mmap control
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 05fc6b68676e84774dd811303221c59c1163db7c

[Gerrit Updater]

"Patrick Farrell <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/46809
Subject: LU-15367 tests: Convert multiop 'len' to 64 bit
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 9c9bef9f8ec9a3dca51dfba7317dd21f088c49b8

[Gerrit Updater]

"Patrick Farrell <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/45840
Subject: LU-15367 tests: Multiop command from file
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 655c238e7e9b2b5a55b2af2d6d4e5cbca05207a4