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| author | Dave Brolley <brolley@redhat.com> | 2009-03-16 12:15:51 -0400 |
|---|---|---|
| committer | Dave Brolley <brolley@redhat.com> | 2009-03-16 12:15:51 -0400 |
| commit | 9b6d8bd0d7a6f80a613b7c609ff1d71ddfed009b (patch) | |
| tree | 2a84a12198ad719d566dd4bca8494a9824c2a097 /tapset/ioscheduler.stp | |
| parent | 24068a1f2e17857f4ce096a17244d09575a199c1 (diff) | |
| parent | 5d369d06fa39e4769fb3364ba29f588f3d995c24 (diff) | |
| download | systemtap-steved-9b6d8bd0d7a6f80a613b7c609ff1d71ddfed009b.tar.gz systemtap-steved-9b6d8bd0d7a6f80a613b7c609ff1d71ddfed009b.tar.xz systemtap-steved-9b6d8bd0d7a6f80a613b7c609ff1d71ddfed009b.zip | |
Merge branch 'master' of git://sources.redhat.com/git/systemtap
Diffstat (limited to 'tapset/ioscheduler.stp')
| -rw-r--r-- | tapset/ioscheduler.stp | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/tapset/ioscheduler.stp b/tapset/ioscheduler.stp index d7a71aca..875ccea9 100644 --- a/tapset/ioscheduler.stp +++ b/tapset/ioscheduler.stp @@ -5,15 +5,17 @@ // redistribute it and/or modify it under the terms of the GNU General // Public License (GPL); either version 2, or (at your option) any // later version. - +// <tapsetdescription> +// This family of probe points is used to probe IO scheduler activities. +// </tapsetdescription> %{ #include <linux/blkdev.h> #include <linux/elevator.h> %} /** - * probe ioscheduler.elv_next_request - Retrieve request from request queue - * @elevator_name: The elevator name + * probe ioscheduler.elv_next_request - Fires when a request is retrieved from the request queue + * @elevator_name: The type of I/O elevator currently enabled */ probe ioscheduler.elv_next_request = kernel.function("elv_next_request") @@ -26,7 +28,7 @@ probe ioscheduler.elv_next_request } /** - * probe ioscheduler.elv_next_request.return - Return from retrieving a request + * probe ioscheduler.elv_next_request.return - Fires when a request retrieval issues a return signal * @req: Address of the request * @req_flags: Request flags * @disk_major: Disk major number of the request @@ -58,14 +60,14 @@ probe ioscheduler.elv_next_request.return } /** - * probe ioscheduler.elv_add_request - Add a request into request queue - * @elevator_name: The elevator name + * probe ioscheduler.elv_add_request -A request was added to the request queue + * @elevator_name: The type of I/O elevator currently enabled * @req: Address of the request * @req_flags: Request flags * @disk_major: Disk major number of the request * @disk_minor: Disk minor number of the request */ -/* when a request is added to the request queue */ +// when a request is added to the request queue probe ioscheduler.elv_add_request = kernel.function("__elv_add_request") { @@ -96,8 +98,8 @@ probe ioscheduler.elv_add_request } /** - * probe ioscheduler.elv_completed_request - Request is completed - * @elevator_name: The elevator name + * probe ioscheduler.elv_completed_request - Fires when a request is completed + * @elevator_name: The type of I/O elevator currently enabled * @req: Address of the request * @req_flags: Request flags * @disk_major: Disk major number of the request |