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