DPDK patches and discussions
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* [dpdk-dev] [PATCH 0/4] test/stack: improve multithreaded test
@ 2020-08-05 15:57 Steven Lariau
  2020-08-05 15:57 ` [dpdk-dev] [PATCH 1/4] test/stack: avoid trivial memory allocations Steven Lariau
                   ` (4 more replies)
  0 siblings, 5 replies; 20+ messages in thread
From: Steven Lariau @ 2020-08-05 15:57 UTC (permalink / raw)
  Cc: dev, honnappa.nagarahalli, dharmik.thakkar, nd, Steven Lariau

The current multithread DPDK stack test is using atomics operations to
share information between threads.
The lockfree stack implementation also uses atomic operations.
This is an issue for testing. The atomics operations for the test may
add some extra synchronization to the stack implementation,
that doesn't exist.
It makes it harder to find bugs related to memory orderings and data
races. The main goal of the patch is to remove all atomics operations
and any other form of data sharing in this test, to make sure that
most of the execution time is spent on the stack library.
    
Furthermore, this patch uses more appropriate functions to start /
wait cores in order to simplify the code.
The patch also adds code to propagate errors on any slave core to the
master.

Steven Lariau (4):
  test/stack: avoid trivial memory allocations
  test/stack: launch tests with mp remote launch API
  test/stack: propagate errors to main core
  test/stack: remove atomics operations

 app/test/test_stack.c | 71 ++++++++-----------------------------------
 1 file changed, 13 insertions(+), 58 deletions(-)

-- 
2.17.1


^ permalink raw reply	[flat|nested] 20+ messages in thread
* [dpdk-dev] [PATCH 0/4] test/stack: improve multithreaded test
@ 2020-08-05 15:45 Steven Lariau
  2020-08-05 15:45 ` [dpdk-dev] [PATCH 2/4] test/stack: launch tests with mp remote launch API Steven Lariau
  0 siblings, 1 reply; 20+ messages in thread
From: Steven Lariau @ 2020-08-05 15:45 UTC (permalink / raw)
  Cc: dev, honnappa.nagarahalli, nd, Steven Lariau

The current multithread DPDK stack test is using atomics operations to
share information between threads.
The lockfree stack implementation also uses atomic operations.
This is an issue for testing. The atomics operations for the test may
add some extra synchronization to the stack implementation,
that doesn't exist.
It makes it harder to find bugs related to memory orderings and data
races. The main goal of the patch is to remove all atomics operations
and any other form of data sharing in this test, to make sure that
most of the execution time is spent on the stack library.
    
Furthermore, this patch uses more appropriate functions to start /
wait cores in order to simplify the code.
The patch also adds code to propagate errors on any slave core to the
master.

Steven Lariau (4):
  test/stack: avoid trivial memory allocations
  test/stack: launch tests with mp remote launch API
  test/stack: propagate errors to main core
  test/stack: remove atomics operations

 app/test/test_stack.c | 71 ++++++++-----------------------------------
 1 file changed, 13 insertions(+), 58 deletions(-)

-- 
2.17.1


^ permalink raw reply	[flat|nested] 20+ messages in thread

end of thread, other threads:[~2020-09-30 19:13 UTC | newest]

Thread overview: 20+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-08-05 15:57 [dpdk-dev] [PATCH 0/4] test/stack: improve multithreaded test Steven Lariau
2020-08-05 15:57 ` [dpdk-dev] [PATCH 1/4] test/stack: avoid trivial memory allocations Steven Lariau
2020-08-11 20:13   ` Eads, Gage
2020-08-11 20:38     ` Stephen Hemminger
2020-08-11 20:49       ` Honnappa Nagarahalli
2020-08-11 21:14         ` Eads, Gage
2020-08-05 15:57 ` [dpdk-dev] [PATCH 2/4] test/stack: launch tests with mp remote launch API Steven Lariau
2020-08-11 20:13   ` Eads, Gage
2020-08-05 15:57 ` [dpdk-dev] [PATCH 3/4] test/stack: propagate errors to main core Steven Lariau
2020-08-11 20:13   ` Eads, Gage
2020-08-05 15:57 ` [dpdk-dev] [PATCH 4/4] test/stack: remove atomics operations Steven Lariau
2020-08-11 20:13   ` Eads, Gage
2020-08-12 19:18 ` [dpdk-dev] [PATCH v2 0/4] test/stack: improve multithreaded test Steven Lariau
2020-08-12 19:18   ` [dpdk-dev] [PATCH v2 1/4] test/stack: avoid trivial memory allocations Steven Lariau
2020-08-13 21:38     ` Eads, Gage
2020-08-12 19:18   ` [dpdk-dev] [PATCH v2 2/4] test/stack: launch tests with mp remote launch API Steven Lariau
2020-08-12 19:18   ` [dpdk-dev] [PATCH v2 3/4] test/stack: propagate errors to main core Steven Lariau
2020-08-12 19:18   ` [dpdk-dev] [PATCH v2 4/4] test/stack: remove atomics operations Steven Lariau
2020-09-30 19:12   ` [dpdk-dev] [PATCH v2 0/4] test/stack: improve multithreaded test David Marchand
  -- strict thread matches above, loose matches on Subject: below --
2020-08-05 15:45 [dpdk-dev] [PATCH " Steven Lariau
2020-08-05 15:45 ` [dpdk-dev] [PATCH 2/4] test/stack: launch tests with mp remote launch API Steven Lariau

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