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feat(scheduler-sim-decision-trace): store the latest trace per job and serve info trace

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Task 4.2: a new trace replaces a job's earlier one; above 64 MiB the
oldest traces are evicted (never the newest) and marked discarded until
a newer capture; info trace renders a job's or an array's stored traces
in the current units mode, or reports discarded / no trace with the
job's state / unknown job.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Rongsong Shen 2026-10-08 13:50:02 +00:00
parent fe445e9453
commit 73416e3e91
Signed by untrusted user: rshen
GPG key ID: 80533536B0EB651C
6 changed files with 1130 additions and 1 deletions
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21
src/scheduler/testsuite/meson.build
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@ -2735,3 +2735,24 @@ sched_trace_render_test = executable(
test('scheduler trace render test',
sched_trace_render_test, suite: 'scheduler',
env: ['ASAN_OPTIONS=detect_leaks=0'])
# scheduler-sim-decision-trace task 4.2: the trace store and `info trace`
# (design.md "TraceStore"; Requirements 1.7, 7.8-7.11, 9.5, 9.6).
# Replacement, eviction at 64 MiB that never drops the newest record, the
# three no-trace replies and arrays mixing stored and discarded elements.
# Links the record model, the renderer, the shared REPL formatting module
# and the store; the job table is a fixture kvmgr with sched_get_job() and
# repl_job_state_name() defined by the test.
sched_trace_store_test = executable(
'sched_trace_store_test',
['test_trace_store.c', '../src/sched_trace.c',
'../src/sched_trace_scan.c', '../src/repl_trace_render.c',
'../src/repl_trace_render_outcome.c', '../src/repl_fmt.c',
'../src/repl_trace_store.c'],
include_directories:[incdir],
dependencies: [scheduler_test_deps],
install: false)
test('scheduler trace store test',
sched_trace_store_test, suite: 'scheduler',
env: ['ASAN_OPTIONS=detect_leaks=0'])