X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=doc%2Fman%2Flttng-enable-channel.1.txt;h=bec0906428c5bfba6e9f91ab3e8f783cd96b472e;hp=315f1c54e30e5334df1c7348238418d8d516ccf5;hb=db0f7697361017ef0d00b2faf322b131b138fca5;hpb=59b19c3c82a824b602b4e3cd70e1cb22448fcb9d diff --git a/doc/man/lttng-enable-channel.1.txt b/doc/man/lttng-enable-channel.1.txt index 315f1c54e..bec090642 100644 --- a/doc/man/lttng-enable-channel.1.txt +++ b/doc/man/lttng-enable-channel.1.txt @@ -26,6 +26,7 @@ Create a user space channel: [option:--overwrite] [option:--buffers-pid] [option:--subbuf-size='SIZE'] [option:--num-subbuf='COUNT'] [option:--switch-timer='PERIODUS'] [option:--read-timer='PERIODUS'] + [option:--blocking-timeout='TIMEOUTUS'] [option:--tracefile-size='SIZE'] [option:--tracefile-count='COUNT'] [option:--session='SESSION'] 'CHANNEL' @@ -201,10 +202,10 @@ in conjunction with the option:--tracefile-size option. For example, consider this command: [role="term"] ------------------------------------------------------ -lttng enable-channel --kernel --tracefile-size=4096 \ +---- +$ lttng enable-channel --kernel --tracefile-size=4096 \ --tracefile-count=32 my-channel ------------------------------------------------------ +---- Here, for each stream, the maximum size of each trace file is 4 kiB and there can be a maximum of 32 different files. When there is @@ -358,6 +359,25 @@ Default values: * option:--kernel option: {default_kernel_channel_switch_timer} * `metadata` channel: {default_metadata_switch_timer} +Timeouts +~~~~~~~~ +option:--blocking-timeout='TIMEOUTUS':: + Set the channel's blocking timeout value to 'TIMEOUTUS' µs + for applications executed with a set `LTTNG_UST_ALLOW_BLOCKING` + environment variable: ++ +-- +0 (default):: + Do not block. + +-1:: + Block forever until room is available in the sub-buffer to write the + event record. + +__n__, a positive value:: + Wait for at most __n__ µs when trying to write into a sub-buffer. +-- + include::common-cmd-help-options.txt[] @@ -385,4 +405,5 @@ include::common-cmd-footer.txt[] SEE ALSO -------- man:lttng-disable-channel(1), -man:lttng(1) +man:lttng(1), +man:lttng-ust(3)