X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=doc%2Fman%2Flttng.1;h=afa8eb85371b40c55d2d0aa175b3976a853c985e;hp=37c206398deeb1771813ca7592d8cafff7f27863;hb=0a9c649428b2ea8d4e743aebc12585eeb58fcf64;hpb=994fa64fa6931b256e76caef3d35a9caf1a3d2a6 diff --git a/doc/man/lttng.1 b/doc/man/lttng.1 index 37c206398..afa8eb853 100644 --- a/doc/man/lttng.1 +++ b/doc/man/lttng.1 @@ -327,17 +327,21 @@ same type. \-\-overwrite Flight recorder mode : overwrites events when subbuffers are full \-\-subbuf-size SIZE - Subbuffer size in bytes {+k,+M,+G} (default: 4096, kernel default: 262144) + Subbuffer size in bytes {+k,+M,+G} + (default UST uid: 131072, UST pid: 4096, kernel: 262144, metadata: 4096) Rounded up to the next power of 2. \-\-num-subbuf NUM - Number of subbuffers (default: 4) + Number of subbuffers. (default UST uid: 4, UST pid: 4, kernel: 4, metadata: 2) Rounded up to the next power of 2. \-\-switch-timer USEC - Switch subbuffer timer interval in µsec (default: 0) + Switch subbuffer timer interval in µsec. + (default UST uid: 0, UST pid: 0, kernel: 0, metadata: 0) \-\-read-timer USEC - Read timer interval in µsec (UST default: 0, kernel default: 200000) + Read timer interval in µsec. + (default UST uid: 0, UST pid: 0, kernel: 200000, metadata: 0) \-\-output TYPE Channel output type. Possible values: mmap, splice + (default UST uid: mmap, UST pid: mmap, kernel: splice, metadata: mmap) \-\-buffers-uid Use per UID buffer (\-u only). Buffers are shared between applications that have the same UID. @@ -347,9 +351,10 @@ same type. Use shared buffer for the whole system (\-k only) \-C, \-\-tracefile-size SIZE Maximum size of each tracefile within a stream (in bytes). + 0 means unlimited. (default: 0) \-W, \-\-tracefile-count COUNT Used in conjunction with \-C option, this will limit the number - of files created to the specified count. + of files created to the specified count. 0 means unlimited. (default: 0) .B EXAMPLES: