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| author | John Högberg <[email protected]> | 2018-06-20 08:19:54 +0200 |
|---|---|---|
| committer | John Högberg <[email protected]> | 2018-06-21 11:45:26 +0200 |
| commit | d3147dd8fc0ee913bc7146efb4d041d04f6582d8 (patch) | |
| tree | e0186d2df636abbb85b68d3315b8e1a3cd571e63 | |
| parent | c976e4bcfe1568f8bf836cd14307bd6e32bee37c (diff) | |
| download | otp-d3147dd8fc0ee913bc7146efb4d041d04f6582d8.tar.gz otp-d3147dd8fc0ee913bc7146efb4d041d04f6582d8.tar.bz2 otp-d3147dd8fc0ee913bc7146efb4d041d04f6582d8.zip | |
Account for the number of workers in system_info_SUITE:memory
This reduces instability on test rigs with more than a handful
schedulers.
| -rw-r--r-- | erts/emulator/test/system_info_SUITE.erl | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/erts/emulator/test/system_info_SUITE.erl b/erts/emulator/test/system_info_SUITE.erl index 21ab6b378a..8ea2d88ec4 100644 --- a/erts/emulator/test/system_info_SUITE.erl +++ b/erts/emulator/test/system_info_SUITE.erl @@ -457,11 +457,16 @@ cmp_memory(MWs, Str) -> %% Total, processes, processes_used, and system will seldom %% give us exactly the same result since the two readings %% aren't taken atomically. + %% + %% Torerance is scaled according to the number of schedulers + %% to match spawn_mem_workers. + + Tolerance = 1.05 + 0.01 * erlang:system_info(schedulers_online), - cmp_memory(total, EM, EDM, 1.05), - cmp_memory(processes, EM, EDM, 1.05), - cmp_memory(processes_used, EM, EDM, 1.05), - cmp_memory(system, EM, EDM, 1.05), + cmp_memory(total, EM, EDM, Tolerance), + cmp_memory(processes, EM, EDM, Tolerance), + cmp_memory(processes_used, EM, EDM, Tolerance), + cmp_memory(system, EM, EDM, Tolerance), ok. |