diff options
| -rwxr-xr-x | tests/qemu-iotests/093 | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/tests/qemu-iotests/093 b/tests/qemu-iotests/093 index b26cd34e32..9d1971a56c 100755 --- a/tests/qemu-iotests/093 +++ b/tests/qemu-iotests/093 @@ -225,15 +225,18 @@ class ThrottleTestCase(iotests.QMPTestCase): # Read 4KB from drive0. This is performed immediately. self.vm.hmp_qemu_io("drive0", "aio_read 0 4096") - # Read 4KB again. The I/O limit has been exceeded so this + # Read 2KB. The I/O limit has been exceeded so this # request is throttled and a timer is set to wake it up. - self.vm.hmp_qemu_io("drive0", "aio_read 0 4096") + self.vm.hmp_qemu_io("drive0", "aio_read 0 2048") + + # Read 2KB again. We're still over the I/O limit so this is + # request is also throttled, but no new timer is set since + # there's already one. + self.vm.hmp_qemu_io("drive0", "aio_read 0 2048") - # Read from drive1. We're still over the I/O limit so this - # request is also throttled. There's no timer set in drive1 - # because there's already one in drive0. Once the timer in - # drive0 fires and its throttled request is processed then the - # next request in the queue will be scheduled: this one. + # Read from drive1. This request is also throttled, and no + # timer is set in drive1 because there's already one in + # drive0. self.vm.hmp_qemu_io("drive1", "aio_read 0 4096") # At this point only the first 4KB have been read from drive0. @@ -248,7 +251,7 @@ class ThrottleTestCase(iotests.QMPTestCase): result = self.vm.qmp("block_set_io_throttle", conv_keys=False, **params) self.assert_qmp(result, 'return', {}) - # Removing the I/O limits from drive0 drains its pending request. + # Removing the I/O limits from drive0 drains its two pending requests. # The read request in drive1 is still throttled. self.assertEqual(self.blockstats('drive0')[0], 8192) self.assertEqual(self.blockstats('drive1')[0], 0) |