ltt/branches/poly/doc/developer/ltt-experimental-rewrite.html

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   3 Here the status of the work in progress for LTT experimental<br>
   4 <br>
   5 * Done<br>
   6 remove ltt-headers.h<br>
   7 remove ltt-log.h<br>
   8 Put trace->active later in _ltt_trace_start()<br>
   9 ltt_trace_create() remove sleep in spinlock use GFP_ATOMIC kmalloc<br>
  10 Fix the locking of module hooks.<br>
  11 Fix the traps -> disable nested logging for now.<br>
  12 Use per cpu spinlock on trace list.<br>
  13 Finish the control module, libltt and lttctl : netlink interface<br>
  14 Finish integrating lttctl with lttd.<br>
  15 fix lttctl signal waiting : use a flag.<br>
  16 <br>
  17 <br>
  18 * TODO<br>
  19 Add information in the buffer header : buffer size, etc etc...<br>
  20         -> this information is so small that we can repeat it. Makes flight recorder
  21         easier to decode.<br>
  22 Add trace start structure to facility channel.<br>
  23 fix genevent : take no lock if num traces active is 0.<br>
  24 <br>
  25 <br>
  26 <br>
  27 * TODO (low priority)<br>
  28 Integrate header generation (genevent) in kernel build system.<br>
  29 Multithreaded lttd.<br>
  30 Find a different way to printk from instrumentation : forbidden from schedule
  31 and wakeup (causes a deadlock).<br>
  32 <br>
  33 * Need to be discussed<br>
  34 Drop ltt-module-register and ltt-module-unregister, use exported variables.<br>
  35 RelayFS ioctl interface vs control through LTT netlink interface.<br>
  36 drop ltt_filter_control, use functions pointers instead.<br>
  37 Merge facilities headers into one big header.<br>
  38 Change the name of XML files from XML to something else.<br>
  39 Remove ltt-base.c.<br>
  40 <br>
  41 * Not planned for integration<br>
  42 Remove the callback struct from the trace struct.<br>
  43 <br>
  44 <br>
  45 <br>
  46 * Next experimental release patch division :<br>
  47 <br>
  48 ltt-instrumentation.diff<br>
  49         - ltt-configmenu.diff (put in ltt-core.diff)<br>
  50 ltt-facilities-headers.diff<br>
  51 ltt-facilities-loader.diff<br>
  52 ltt-facilities.diff<br>
  53 ltt-instrumentation.diff<br>
  54 ltt-relayfs.diff<br>
  55 ltt-time.diff<br>
  56 ltt-core.diff<br>
  57 <br>
  58 <br>
  59 Mathieu Desnoyers<br>
  60
  61
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