The first patch adds a new parameter thinktime_blocks_type to control
the behavior of thinktime_blocks. It can be either `complete`
or `issue`.
If it is `complete` (default), fio triggers thinktime when
thinktime_blocks number of blocks are **completed**.
If it is `issue`, fio triggers thinktime when thinktime_blocks
number of blocks are **issued**
The second patch updates the compare time if handle_thinktime
sleeps or spin.
I bring the test results from the first patch to here
for your convenience:
Tests:
jobfile1:
```
[global]
thread
kb_base=1000
direct=1
size=1GiB
group_reporting
io_size=96KiB
ioengine=libaio
iodepth=8
bs=4096
filename=/dev/qblkdev
rw=randwrite
[fio_randwrite]
thinktime=2s
thinktime_blocks=4
```
jobfile2:
```
[global]
thread
kb_base=1000
direct=1
size=1GiB
group_reporting
io_size=96KiB
ioengine=libaio
iodepth=8
bs=4096
filename=/dev/qblkdev
rw=randwrite
[fio_randwrite]
thinktime=2s
thinktime_blocks=4
thinktime_blocks_type=issue
```
Results:
Current HEAD:
fio jobfile1:
write: IOPS=5, BW=24.6kB/s (24.0KiB/s)(98.3kB/4002msec); 0 zone resets
- issue 11 requests
- sleep 2s
- issue 8 requests
- sleep 2s
- issue 5 requests
- finish
This patch:
fio jobfile1:
write: IOPS=5, BW=24.6kB/s (24.0KiB/s)(98.3kB/4001msec); 0 zone resets
- issue 11 requests
- sleep 2s
- issue 8 requests
- sleep 2s
- issue 5 requests
- finish
fio jobfile2:
write: IOPS=1, BW=8191B/s (8191B/s)(98.3kB/12001msec); 0 zone resets
- issue 4 requests
- sleep 2s
***
- issue 4 requests
- sleep 2s
- finish
Hongwei Qin (2):
Add a new parameter.
Calculate min_rate with the consideration of thinktime
HOWTO | 7 +++++++
backend.c | 22 ++++++++++++++++------
cconv.c | 2 ++
engines/cpu.c | 1 +
fio.h | 5 +++++
options.c | 22 ++++++++++++++++++++++
thread_options.h | 2 ++
7 files changed, 55 insertions(+), 6 deletions(-)
--
1.8.3.1
