On Tue, Apr 1, 2014 at 1:12 PM, YAMAMOTO Takashi <yamam...@valinux.co.jp> wrote:
>>> # Sleep and modify the one that expires soonest
>>> -sleep 2
>>> +ovs-appctl time/warp 20000
>>
>> I think we should warp as small as possible to verify precision.
>> What do you think about warp 12000?
>
> i agree smaller is better.
> how about the following?
>
> YAMAMOTO Takashi
>
>
> commit b4a624761fe90aa0d57264013287f4236077ac9c
> Author: YAMAMOTO Takashi <yamam...@valinux.co.jp>
> Date: Mon Mar 31 14:04:35 2014 +0900
>
> ofproto.at: Fix races in rule eviciton tests
>
> Bump timeout differences, because timeouts different by 1s might end up
> to have the same position in the heap as rule_eviction_priority() uses
> 1024ms as a unit.
>
> Also, use time/stop to avoid relying on how long an add-flow would take.
>
> These tests were introduced by commit 6d56c1f1.
> ("ofproto: Update rule's priority in eviction group.")
>
> Signed-off-by: YAMAMOTO Takashi <yamam...@valinux.co.jp>
> Cc: Kmindg G <kmi...@gmail.com>
> Acked-by: Ben Pfaff <b...@nicira.com>
>
> diff --git a/tests/ofproto.at b/tests/ofproto.at
> index e98b526..a5116db 100644
> --- a/tests/ofproto.at
> +++ b/tests/ofproto.at
> @@ -1375,27 +1375,28 @@ AT_CHECK(
> | ${PERL} $srcdir/uuidfilt.pl],
> [0], [<0>
> ])
> +ovs-appctl time/stop
> # Add 4 flows.
> for in_port in 4 3 2 1; do
> - ovs-ofctl add-flow br0
> hard_timeout=1${in_port},in_port=$in_port,actions=drop
> + ovs-ofctl add-flow br0 hard_timeout=$((10 + in_port *
> 2)),in_port=$in_port,actions=drop
> done
> AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
> - hard_timeout=11, in_port=1 actions=drop
> - hard_timeout=12, in_port=2 actions=drop
> - hard_timeout=13, in_port=3 actions=drop
> - hard_timeout=14, in_port=4 actions=drop
> + hard_timeout=12, in_port=1 actions=drop
> + hard_timeout=14, in_port=2 actions=drop
> + hard_timeout=16, in_port=3 actions=drop
> + hard_timeout=18, in_port=4 actions=drop
> NXST_FLOW reply:
> ])
> # Sleep and modify the one that expires soonest
> -sleep 2
> +ovs-appctl time/warp 3000
> AT_CHECK([ovs-ofctl mod-flows br0 in_port=1,actions=drop])
at this point, flow table would be:
hard_timeout=12, in_port=1 actions=drop
hard_timeout=11, in_port=2 actions=drop
hard_timeout=13, in_port=3 actions=drop
hard_timeout=15, in_port=4 actions=drop
And according to your comment, 1s interval may not be suitable.
I would like to change (10 + in_port * 2) to (10 + in_port * 3), and warp 4000.
What do you think?
Thanks.
> -sleep 2
> +ovs-appctl time/warp 2000
> # Adding another flow will cause the one that expires soonest to be evicted.
> AT_CHECK([ovs-ofctl add-flow br0 in_port=5,actions=drop])
> AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
> - hard_timeout=11, in_port=1 actions=drop
> - hard_timeout=13, in_port=3 actions=drop
> - hard_timeout=14, in_port=4 actions=drop
> + hard_timeout=12, in_port=1 actions=drop
> + hard_timeout=16, in_port=3 actions=drop
> + hard_timeout=18, in_port=4 actions=drop
> in_port=5 actions=drop
> NXST_FLOW reply:
> ])
> @@ -1414,26 +1415,27 @@ AT_CHECK(
> ])
> # Add 4 flows.
> for in_port in 4 3 2 1; do
> - ovs-ofctl add-flow br0
> idle_timeout=1${in_port},in_port=$in_port,actions=drop
> + ovs-ofctl add-flow br0 idle_timeout=$((10 + in_port *
> 2)),in_port=$in_port,actions=drop
> done
> +ovs-appctl time/stop
> AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
> - idle_timeout=11, in_port=1 actions=drop
> - idle_timeout=12, in_port=2 actions=drop
> - idle_timeout=13, in_port=3 actions=drop
> - idle_timeout=14, in_port=4 actions=drop
> + idle_timeout=12, in_port=1 actions=drop
> + idle_timeout=14, in_port=2 actions=drop
> + idle_timeout=16, in_port=3 actions=drop
> + idle_timeout=18, in_port=4 actions=drop
> NXST_FLOW reply:
> ])
> # Sleep and receive on the flow that expires soonest
> -sleep 2
> +ovs-appctl time/warp 3000
> AT_CHECK([ovs-appctl netdev-dummy/receive p1 'in_port(1)'])
> -sleep 2
> +ovs-appctl time/warp 2000
> # Adding another flow will cause the one that expires soonest to be evicted.
> AT_CHECK([ovs-ofctl add-flow br0 in_port=5,actions=drop])
> AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sort], [0], [dnl
> - idle_timeout=13, in_port=3 actions=drop
> - idle_timeout=14, in_port=4 actions=drop
> + idle_timeout=16, in_port=3 actions=drop
> + idle_timeout=18, in_port=4 actions=drop
> in_port=5 actions=drop
> - n_packets=1, n_bytes=60, idle_timeout=11, in_port=1 actions=drop
> + n_packets=1, n_bytes=60, idle_timeout=12, in_port=1 actions=drop
> NXST_FLOW reply:
> ])
> OVS_VSWITCHD_STOP
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