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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 | <br> |
13 | <br> |
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14 | Here the status of the work in progress for LTT experimental<br> |
15 | <br> |
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16 | * Done<br> |
b720b182 |
17 | remove ltt-headers.h<br> |
18 | remove ltt-log.h<br> |
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19 | Put trace->active later in _ltt_trace_start()<br> |
20 | ltt_trace_create() remove sleep in spinlock use GFP_ATOMIC kmalloc<br> |
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21 | Fix the locking of module hooks.<br> |
22 | Fix the traps -> disable nested logging for now.<br> |
23 | Use per cpu spinlock on trace list.<br> |
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24 | Finish the control module, libltt and lttctl : netlink interface<br> |
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25 | Finish integrating lttctl with lttd.<br> |
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26 | fix lttctl signal waiting : use a flag.<br> |
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27 | Add ltt_write_commit_counter call to genevent.<br> |
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28 | Add information in the buffer header : buffer size, etc etc...<br> |
29 | -> this information is so small that we can repeat it. Makes flight recorder |
30 | easier to decode.<br> |
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31 | Add trace start structure to buffer start header.<br> |
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32 | fix genevent : take no lock if num traces active is 0.<br> |
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33 | Add type information per facility : it will help having a standard way |
34 | to understand information coming from both kernel space and user space, and deal |
35 | easily with 64 bits kernel with 64 and 32 bits processes (and with size_t know |
36 | at compile time which can differ inside the same process from one library to |
37 | another).<br> |
38 | fix structures alignment, array and sequences too. -> trace dynamic.<br> |
39 | add per facility alignment (inside structures).<br> |
40 | add control of alignment.<br> |
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41 | add control for subbuffer size and number of subbuffers.<br> |
42 | <br> |
43 | <br> |
44 | * TODO<br> |
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45 | add user space tracing.<br> |
46 | <br> |
47 | <br> |
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48 | <br> |
49 | * TODO (low priority)<br> |
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50 | Integrate header generation (genevent) in kernel build system.<br> |
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51 | Multithreaded lttd.<br> |
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52 | Find a different way to printk from instrumentation : forbidden from schedule |
53 | and wakeup (causes a deadlock).<br> |
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54 | <br> |
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55 | * Need to be discussed<br> |
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56 | Drop ltt-module-register and ltt-module-unregister, use exported variables.<br> |
57 | RelayFS ioctl interface vs control through LTT netlink interface.<br> |
58 | drop ltt_filter_control, use functions pointers instead.<br> |
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59 | Merge facilities headers into one big header.<br> |
60 | Change the name of XML files from XML to something else.<br> |
61 | Remove ltt-base.c.<br> |
62 | <br> |
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63 | * Not planned for integration<br> |
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64 | Remove the callback struct from the trace struct.<br> |
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65 | <br> |
66 | <br> |
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67 | <br> |
68 | * Next experimental release patch division :<br> |
69 | <br> |
70 | ltt-instrumentation.diff<br> |
71 | - ltt-configmenu.diff (put in ltt-core.diff)<br> |
72 | ltt-facilities-headers.diff<br> |
73 | ltt-facilities-loader.diff<br> |
74 | ltt-facilities.diff<br> |
75 | ltt-instrumentation.diff<br> |
76 | ltt-relayfs.diff<br> |
77 | ltt-time.diff<br> |
78 | ltt-core.diff<br> |
79 | <br> |
80 | <br> |
81 | Mathieu Desnoyers<br> |
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82 | |
83 | |
84 | </body> |
85 | </html> |