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Diffstat (limited to 'man/tapset::iosched.3stap')
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diff --git a/man/tapset::iosched.3stap b/man/tapset::iosched.3stap new file mode 100644 index 00000000..58e27c9a --- /dev/null +++ b/man/tapset::iosched.3stap @@ -0,0 +1,100 @@ +.\" -*- nroff -*- +.TH TAPSET::IOSCHED 3stap "" "IBM" +.SH NAME +tapset::iosched \- systemtap IO scheduler probe points + +.\" macros +.de SAMPLE +.br +.RS +.nf +.nh +.. +.de ESAMPLE +.hy +.fi +.RE +.. + +.SH DESCRIPTION + +This family of probe points is used to probe the IO scheduler +activities. It contains the following probe points: + +.P +.TP +.B ioscheduler.elv_next_request +Fires when retrieves a request from request queue + +.B Arguments: + +.I elevator_name + The elevator name + +.P +.TP +.B ioscheduler.elv_next_request.return +Fires when return from retrieving a request + +.B Arguments: + +.I req + Address of the request + +.I req_flags + request flags + +.I disk_major + disk major number of the request + +.I disk_minor + disk minor number of the request + +.P +.TP +.B ioscheduler.elv_add_request +Fires when add a request into request queue + +.B Arguments: + +.I elevator_name + The elevator name + +.I req + Address of the request + +.I req_flags + request flags + +.I disk_major + disk major number of the request + +.I disk_minor + disk minor number of the request + +.P +.TP +.B ioscheduler.elv_completed_request +Fires when a request is completed + +.B Arguments: + +.I elevator_name + The elevator name + +.I req + Address of the request + +.I req_flags + request flags + +.I disk_major + disk major number of the request + +.I disk_minor + disk minor number of the request + +.SH SEE ALSO +.IR stap (1), +.IR stapprobes (3stap) + |