[PATCH QEMU v2 0/3] migration: enrich the dirty-limit test case

[~hyman]

The dirty-limit migration test involves many passes
and takes about 1 minute on average, so put it in
the slow mode of migration-test. Inspired by Peter.

V2:
- put the dirty-limit migration test in slow mode and
  enrich the test case comment

Dirty-limit feature was introduced in 8.1, and the test
case could be enriched to make sure the behavior and
the performance of dirty-limit is exactly what we want.

This series adds 2 test cases, the first commit aims
for the functional test and the others aim for the
performance test.

Please review, thanks.

Yong.

Hyman Huang(黄勇) (3):
  tests: Add migration dirty-limit capability test
  tests/migration: Introduce dirty-ring-size option into guestperf
  tests/migration: Introduce dirty-limit into guestperf

 tests/migration/guestperf/comparison.py |  23 ++++
 tests/migration/guestperf/engine.py     |  23 +++-
 tests/migration/guestperf/hardware.py   |   8 +-
 tests/migration/guestperf/progress.py   |  16 ++-
 tests/migration/guestperf/scenario.py   |  11 +-
 tests/migration/guestperf/shell.py      |  24 +++-
 tests/qtest/migration-test.c            | 164 ++++++++++++++++++++++++
 7 files changed, 261 insertions(+), 8 deletions(-)

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2.38.5