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Richard Purdie 325bc7438e oeqa/logparser: Fix performance issues with ptest log parsing
On the autobuilder a ptest log with 2.1 million lines took around 18 hours to
process. This is clearly crazy.

We can tweak the processing code to:
a) Stop repeatedly joining large strings together (append to a list instead)
b) Use one startswith expression instead of multiple re.search() operations

With this change it takes 18 hours down to around 12s.

[YOCTO #13696]

(From OE-Core rev: 01c9f40b979e36a53e789a6bedd89b6d9557dce3)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-02-21 09:39:00 +00:00
2020-01-31 08:03:08 +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.
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