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afd213cc8e
Prevent new tasks from being scheduled if the memory pressure is above
a certain threshold, specified through the "BB_MAX_PRESSURE_MEMORY"
variable in the conf/local.conf file. This is an extension to the
following commit and hence regulates pressure in the same way:
48a6d84de1 bitbake: runqueue: add cpu/io pressure regulation
Memory pressure is experienced when time is spent swapping, refaulting
pages from the page cache or performing direct reclaim. This is why
memory pressure is rarely seen but might be useful as a last resort to
prevent OOM errors.
(Bitbake rev: 44c395434c7be8dab968630a610c8807f512920c)
(Bitbake rev: 82b683f8c7a559f4fcab68f6a0fa7dc3dc20fa05)
Signed-off-by: Aryaman Gupta <aryaman.gupta@windriver.com>
Signed-off-by: Randy Macleod <Randy.Macleod@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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.