> > Thanks for confirming the 1:1 correspondence between channels and files. > > I wanted to make sure I understood the ins and outs properly. > > Not quite, > > It's a 1:1 correspondence between ring buffer and file. > 1:N correspondence between channel and ring buffers. (typically, N being the > number of cpus) (therefore 1:N correspondence between channel and files) > 1:M correspondence between ring buffer and sub-buffers. (M being the number > of subbuffers per buffers, configurable on a per-channel basis) > 1:1 correspondence between sub-buffer and CTF trace packet. > > Mathieu
I meant 1:1 correspondence between channel+cpu and file, as you said (I should have stayed in bed this morning :-) ). In a situation where all user-space events are being traced per UID, aren't the ring buffers further duplicated if there are both 32- and 64-bit events? It would seem so since you will get both a session/ust/uid/1000/64-bit/channel0_0 file and a session/ust/uid/1000/32-bit/channel0_0 file. Daniel U. Thibault Protection des systèmes et contremesures (PSC) | Systems Protection & Countermeasures (SPC) Cyber sécurité pour les missions essentielles (CME) | Mission Critical Cyber Security (MCCS) R & D pour la défense Canada - Valcartier (RDDC Valcartier) | Defence R&D Canada - Valcartier (DRDC Valcartier) 2459 route de la Bravoure Québec QC G3J 1X5 CANADA Vox : (418) 844-4000 x4245 Fax : (418) 844-4538 NAC : 918V QSDJ <http://www.travelgis.com/map.asp?addr=918V%20QSDJ> Gouvernement du Canada | Government of Canada <http://www.valcartier.drdc-rddc.gc.ca/> _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
