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1 | <html> |
| 2 | <body> |
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3 | <big>Progress in LTTV :<small><br> |
| 0c4b3d55 |
4 | * Done<br> |
| 3490c00c |
5 | Buffer aligned on page boundary -> use valloc.<br> |
| d6533ec7 |
6 | per struct (struct align=x) support added to genevent (partial).<br> |
| b8b5f119 |
7 | Add offset align generation for structs to genevent.<br> |
| 81d2643e |
8 | make lttv aware of the per facility long, void* and size_t types.<br> |
| 9 | Read current trace header and buffer header.<br> |
| 0c4b3d55 |
10 | <br> |
| 11 | *TODO<br> |
| 0c4b3d55 |
12 | migrate align to lttv parser.<br> |
| 81d2643e |
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> |
| 0c4b3d55 |
17 | <br> |
| 18 | <br> |
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19 | Here the status of the work in progress for LTT Next Generation<br> |
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20 | <br> |
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21 | * Done<br> |
| b720b182 |
22 | remove ltt-headers.h<br> |
| 23 | remove ltt-log.h<br> |
| c9eaf4ed |
24 | Put trace->active later in _ltt_trace_start()<br> |
| 25 | ltt_trace_create() remove sleep in spinlock use GFP_ATOMIC kmalloc<br> |
| 1502fa62 |
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> |
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29 | Finish the control module, libltt and lttctl : netlink interface<br> |
| baffa645 |
30 | Finish integrating lttctl with lttd.<br> |
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31 | fix lttctl signal waiting : use a flag.<br> |
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32 | Add ltt_write_commit_counter call to genevent.<br> |
| 24c78300 |
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> |
| 4e4d11b3 |
36 | Add trace start structure to buffer start header.<br> |
| ada84671 |
37 | fix genevent : take no lock if num traces active is 0.<br> |
| 4e4d11b3 |
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> |
| 0c4b3d55 |
46 | add control for subbuffer size and number of subbuffers.<br> |
| b6dfdc9c |
47 | Add reserve - get TSC - alignment atomicity through the use of cmpxchg.<br> |
| 48 | Add configurable alignment (LTT_ALIGNMENT).<br> |
| 0c4b3d55 |
49 | <br> |
| 50 | <br> |
| 51 | * TODO<br> |
| 4a4cde38 |
52 | make LTT tracing code completely atomic (thus remove locks)<br> |
| 81d2643e |
53 | add efficient and secure user space tracing. (1 month)<br> |
| 54 | integrate LTTng State Dump : missing irq and process state.<br> |
| b6dfdc9c |
55 | add genevent full functionnality : alignment, array, sequences, nested |
| 56 | structures.<br> |
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57 | add gcc -finstrument-functions instrumentation<br> |
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58 | <br> |
| 59 | <br> |
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60 | <br> |
| 61 | * TODO (low priority)<br> |
| b720b182 |
62 | Integrate header generation (genevent) in kernel build system.<br> |
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63 | Multithreaded lttd.<br> |
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64 | Find a different way to printk from instrumentation : forbidden from schedule |
| 65 | and wakeup (causes a deadlock).<br> |
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66 | <br> |
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67 | * Need to be discussed<br> |
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68 | Drop ltt-module-register and ltt-module-unregister, use exported variables.<br> |
| 69 | RelayFS ioctl interface vs control through LTT netlink interface.<br> |
| 70 | drop ltt_filter_control, use functions pointers instead.<br> |
| b720b182 |
71 | Merge facilities headers into one big header.<br> |
| 72 | Change the name of XML files from XML to something else.<br> |
| 73 | Remove ltt-base.c.<br> |
| 74 | <br> |
| 15e89ad6 |
75 | * Not planned for integration<br> |
| 4f782cda |
76 | Remove the callback struct from the trace struct.<br> |
| 15e89ad6 |
77 | <br> |
| 78 | <br> |
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79 | <br> |
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80 | * lttng patch division (0.4.2+) :<br> |
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81 | <br> |
| 82 | ltt-instrumentation.diff<br> |
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83 | ltt-facilities-headers.diff<br> |
| 84 | ltt-facilities-loader.diff<br> |
| 85 | ltt-facilities.diff<br> |
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86 | ltt-relayfs.diff<br> |
| b720b182 |
87 | ltt-core.diff<br> |
| 88 | <br> |
| 89 | <br> |
| 90 | Mathieu Desnoyers<br> |
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91 | |
| 92 | |
| 93 | </body> |
| 94 | </html> |
projects / lttv.git / blame