[PATCH 0/2] Fix percentage random workload and add test case

[Ankit Kumar <ankit.kumar@samsung.com>]

Sometimes while running a mix of sequential and random I/O's the
generated sequential offset is outside the I/O region. This usually
happens if the previous I/O is the last block in the region which
results in this sequential I/O offset to be just outside the region.
This results in fio finishing without doing the specified amount of
I/O's.
With this fix fio now generates a random offset within the region.

Added a test case for the same (test_id: 28)
As I see there is a pending patch with test_id: 27
so I decided to skip it to avoid conflict.

This now fixes the issue: https://github.com/axboe/fio/issues/1486

Ankit Kumar (2):
  io_u: fix offset generation for mix of random and sequential workload
  test: add test for mix random and sequential workload

 io_u.c                |  5 ++++-
 t/jobs/t0028-post.fio | 27 +++++++++++++++++++++++++++
 t/jobs/t0028-pre.fio  | 21 +++++++++++++++++++++
 t/run-fio-tests.py    | 34 ++++++++++++++++++++++++++++++++++
 4 files changed, 86 insertions(+), 1 deletion(-)
 create mode 100644 t/jobs/t0028-post.fio
 create mode 100644 t/jobs/t0028-pre.fio

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2.17.1