| | 1 | <html> |
| | 2 | <body> |
| | 3 | Progress in LTTV :<br> |
| | 4 | * Done<br> |
| | 5 | Buffer aligned on page boundary -> use valloc.<br> |
| | 6 | per struct (struct align=x) support added to genevent (partial).<br> |
| | 7 | Add offset align generation for structs to genevent.<br> |
| | 8 | make lttv aware of the per facility long, void* and size_t types.<br> |
| | 9 | Read current trace header and buffer header.<br> |
| | 10 | <br> |
| | 11 | *TODO<br> |
| | 12 | migrate align to lttv parser.<br> |
| | 13 | create a event rate graphical view : Will be useful in conjonction with the |
| | 14 | filter.<br> |
| | 15 | create an analysis of function time (like a precise gprof)<br> |
| | 16 | -> with gcc -f inline-functions<br> |
| | 17 | <br> |
| | 18 | <br> |
| | 19 | Here the status of the work in progress for LTT Next Generation<br> |
| | 20 | <br> |
| | 21 | * Done<br> |
| | 22 | remove ltt-headers.h<br> |
| | 23 | remove ltt-log.h<br> |
| | 24 | Put trace->active later in _ltt_trace_start()<br> |
| | 25 | ltt_trace_create() remove sleep in spinlock use GFP_ATOMIC kmalloc<br> |
| | 26 | Fix the locking of module hooks.<br> |
| | 27 | Fix the traps -> disable nested logging for now.<br> |
| | 28 | Use per cpu spinlock on trace list.<br> |
| | 29 | Finish the control module, libltt and lttctl : netlink interface<br> |
| | 30 | Finish integrating lttctl with lttd.<br> |
| | 31 | fix lttctl signal waiting : use a flag.<br> |
| | 32 | Add ltt_write_commit_counter call to genevent.<br> |
| | 33 | Add information in the buffer header : buffer size, etc etc...<br> |
| | 34 | -> this information is so small that we can repeat it. Makes flight recorder |
| | 35 | easier to decode.<br> |
| | 36 | Add trace start structure to buffer start header.<br> |
| | 37 | fix genevent : take no lock if num traces active is 0.<br> |
| | 38 | Add type information per facility : it will help having a standard way |
| | 39 | to understand information coming from both kernel space and user space, and deal |
| | 40 | easily with 64 bits kernel with 64 and 32 bits processes (and with size_t know |
| | 41 | at compile time which can differ inside the same process from one library to |
| | 42 | another).<br> |
| | 43 | fix structures alignment, array and sequences too. -> trace dynamic.<br> |
| | 44 | add per facility alignment (inside structures).<br> |
| | 45 | add control of alignment.<br> |
| | 46 | add control for subbuffer size and number of subbuffers.<br> |
| | 47 | Add reserve - get TSC - alignment atomicity through the use of cmpxchg.<br> |
| | 48 | Add configurable alignment (LTT_ALIGNMENT).<br> |
| | 49 | <br> |
| | 50 | <br> |
| | 51 | * TODO<br> |
| | 52 | add efficient and secure user space tracing. (1 month)<br> |
| | 53 | integrate LTTng State Dump : missing irq and process state.<br> |
| | 54 | add genevent full functionnality : alignment, array, sequences, nested |
| | 55 | structures.<br> |
| | 56 | add gcc -finstrument-functions instrumentation<br> |
| | 57 | <br> |
| | 58 | <br> |
| | 59 | <br> |
| | 60 | * TODO (low priority)<br> |
| | 61 | Integrate header generation (genevent) in kernel build system.<br> |
| | 62 | Multithreaded lttd.<br> |
| | 63 | Find a different way to printk from instrumentation : forbidden from schedule |
| | 64 | and wakeup (causes a deadlock).<br> |
| | 65 | <br> |
| | 66 | * Need to be discussed<br> |
| | 67 | Drop ltt-module-register and ltt-module-unregister, use exported variables.<br> |
| | 68 | RelayFS ioctl interface vs control through LTT netlink interface.<br> |
| | 69 | drop ltt_filter_control, use functions pointers instead.<br> |
| | 70 | Merge facilities headers into one big header.<br> |
| | 71 | Change the name of XML files from XML to something else.<br> |
| | 72 | Remove ltt-base.c.<br> |
| | 73 | <br> |
| | 74 | * Not planned for integration<br> |
| | 75 | Remove the callback struct from the trace struct.<br> |
| | 76 | <br> |
| | 77 | <br> |
| | 78 | <br> |
| | 79 | * lttng patch division (0.4.2+) :<br> |
| | 80 | <br> |
| | 81 | ltt-instrumentation.diff<br> |
| | 82 | ltt-facilities-headers.diff<br> |
| | 83 | ltt-facilities-loader.diff<br> |
| | 84 | ltt-facilities.diff<br> |
| | 85 | ltt-relayfs.diff<br> |
| | 86 | ltt-core.diff<br> |
| | 87 | <br> |
| | 88 | <br> |
| | 89 | Mathieu Desnoyers<br> |
| | 90 | |
| | 91 | |
| | 92 | </body> |
| | 93 | </html> |
projects / lttv.git / blame_incremental