Mark Hatle a0cb1021c0 bitbake: runqueue.py: Initial implementation of per task process limits
On high core machines, in do_fetch, it is possible to DDoS your own machine.
A method to limit any arbitrary task type to a certain number of simultaneous
threads is needed.  (Similar to how BB_NUMBER_THREADS works in the general
case.)  The format of this new limitation is:

    do_fetch[number_threads] = "2"

This should be set globally.  If it is set in individual recipes it could
result in unpredictable behavior.

Note: a value for number_threads > BB_NUMBER_THREADS will have no effect.

(Bitbake rev: 055865047c63b9c3b213b47a1884924ce0adeda0)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-06-15 17:57:30 +01:00
2018-06-15 17:56:25 +01:00
2014-01-02 12:58:54 +00:00
2018-02-24 10:31:45 +00:00

QEMU Emulation Targets
======================

To simplify development, the build system supports building images to
work with the QEMU emulator in system emulation mode. Several architectures
are currently supported in 32 and 64 bit variants:

  * ARM (qemuarm + qemuarm64)
  * x86 (qemux86 + qemux86-64)
  * PowerPC (qemuppc only)
  * MIPS (qemumips + qemumips64)

Use of the QEMU images is covered in the Yocto Project Reference Manual.
The appropriate MACHINE variable value corresponding to the target is given
in brackets.
Description
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