The old Largest Buffer search algorithm is using Binary Search
algorithm to find last successful memory allocation. But each
successful memory allocation takes times. Since the unsuccessful
memory allocation returns very quick. Changing the search algorithm
to find first successful memory allocation starting from MAX, each
testing step with granularity interval will speed up this test.
Change-Id: I07daea05423c33e72a483f0013e8ea1b5dabf989
Signed-off-by: James Zhu <James.Zhu@amd.com>
Aqua Vanjaram is intended to have fine-grained coherency
from anywhere to anywhere else using read-acquire and
write-release primitives.
Add a test that writes to memory covered by five
different cache lines, then write-releases, while
another thread read-acquires, then reads those
five locations in memory.
There are nine variations of the test to cover
CPU-GPU, same-GPU and across-GPU, vector instructions and
scalar instructions, and data local to the
acquirer or receiver.
Signed-off-by: David Francis <David.Francis@amd.com>
Change-Id: I20d2db5c53bd280e971479aad7e61df6ed5d3623
In order to accommodate the flaky queue submission under memory
shortage scenarios, BigBufferStressTest has become very much a hack,
undermining its purpose of testing the basic memory related operations.
Therefore, remove the queue submission part. The EvictTest should serve
the purpose of testing the memory and queue submission functionalities
when memory eviction happens.
Change-Id: I3c3603a0e834267eccb72f46efeabe1e053c8fc5
Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Because dma32 zone is on node 0, use all system memory on node 0 will
cause TTM eviction to free dma32 zone for other devices which only
work with 32bit physical address. The TTM eviction and restore may take
too long and cause queue timeout.
Running on other NUMA nodes, the NUMA default memory policy is
MPOL_PREFERRED, means TTM will get pages from local node first, and then
get remaining pages from other nodes. Check /proc/buddyinfo can confirm
this.
Reset NUMA bind to all after the test.
Change-Id: I39b373c07a2d5aa396f5c7602bffabab0481930f
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
The code is a snapshot up to this commit around July 31 2018.
commit b00fadff36a3
Author: xinhui pan <xinhui.pan@amd.com>
Date: Mon Jul 30 09:53:03 2018 +0800
kfdtest: skip MMapLarge test on apu
Change-Id: I40e9a5a18e5c8f075e5290bb80532f1a3f689058
Signed-off-by: Yong Zhao <yong.zhao@amd.com>
James Zhu
David Francis
Graham Sider
Yong Zhao
Philip Yang
Kent Russell