[PATCH] app/testpmd: Optimize membuf pool allocation

[PATCH] app/testpmd: Optimize membuf pool allocation

[Phil Yang]

By default, testpmd will create membuf pool for all NUMA nodes and
ignore EAL configuration.

Count the number of available NUMA according to EAL core mask or core
list configuration. Optimized by only creating membuf pool for those
nodes.

Fixes: d5aeab6542f ("app/testpmd: fix mempool creation by socket id")

Signed-off-by: Phil Yang <phil.yang@arm.com>
---
 app/test-pmd/testpmd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index ee48db2..a56af2b 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -476,6 +476,8 @@ set_default_fwd_lcores_config(void)
 
 	nb_lc = 0;
 	for (i = 0; i < RTE_MAX_LCORE; i++) {
+		if (!rte_lcore_is_enabled(i))
+			continue;
 		sock_num = rte_lcore_to_socket_id(i);
 		if (new_socket_id(sock_num)) {
 			if (num_sockets >= RTE_MAX_NUMA_NODES) {
@@ -485,8 +487,6 @@ set_default_fwd_lcores_config(void)
 			}
 			socket_ids[num_sockets++] = sock_num;
 		}
-		if (!rte_lcore_is_enabled(i))
-			continue;
 		if (i == rte_get_master_lcore())
 			continue;
 		fwd_lcores_cpuids[nb_lc++] = i;
-- 
2.7.4

Re: [PATCH] app/testpmd: Optimize membuf pool allocation

[Gavin Hu]

> -----Original Message-----
> From: Phil Yang <phil.yang@arm.com>
> Sent: Monday, August 27, 2018 5:33 PM
> To: dev@dpdk.org
> Cc: nd <nd@arm.com>; Gavin Hu <Gavin.Hu@arm.com>
> Subject: [PATCH] app/testpmd: Optimize membuf pool allocation
> 
> By default, testpmd will create membuf pool for all NUMA nodes and ignore
> EAL configuration.
> 
> Count the number of available NUMA according to EAL core mask or core list
> configuration. Optimized by only creating membuf pool for those nodes.
> 
> Fixes: d5aeab6542f ("app/testpmd: fix mempool creation by socket id")
> 
> Signed-off-by: Phil Yang <phil.yang@arm.com>

Acked-by: Gavin Hu <gavin.hu@arm.com>

> ---
>  app/test-pmd/testpmd.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c index
> ee48db2..a56af2b 100644
> --- a/app/test-pmd/testpmd.c
> +++ b/app/test-pmd/testpmd.c
> @@ -476,6 +476,8 @@ set_default_fwd_lcores_config(void)
> 
>  	nb_lc = 0;
>  	for (i = 0; i < RTE_MAX_LCORE; i++) {
> +		if (!rte_lcore_is_enabled(i))
> +			continue;
>  		sock_num = rte_lcore_to_socket_id(i);
>  		if (new_socket_id(sock_num)) {
>  			if (num_sockets >= RTE_MAX_NUMA_NODES) { @@ -
> 485,8 +487,6 @@ set_default_fwd_lcores_config(void)
>  			}
>  			socket_ids[num_sockets++] = sock_num;
>  		}
> -		if (!rte_lcore_is_enabled(i))
> -			continue;
>  		if (i == rte_get_master_lcore())
>  			continue;
>  		fwd_lcores_cpuids[nb_lc++] = i;
> --
> 2.7.4

Re: [PATCH] app/testpmd: Optimize membuf pool allocation

[Iremonger, Bernard]

Hi Gavin,

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org]
> Sent: Monday, August 27, 2018 10:33 AM
> To: dev@dpdk.org
> Cc: nd@arm.com; gavin.hu@arm.com
> Subject: [dpdk-dev] [PATCH] app/testpmd: Optimize membuf pool allocation
> 
> By default, testpmd will create membuf pool for all NUMA nodes and ignore EAL
> configuration.
> 
> Count the number of available NUMA according to EAL core mask or core list
> configuration. Optimized by only creating membuf pool for those nodes.
> 
> Fixes: d5aeab6542f ("app/testpmd: fix mempool creation by socket id")
> 
> Signed-off-by: Phil Yang <phil.yang@arm.com>
> ---
>  app/test-pmd/testpmd.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c index
> ee48db2..a56af2b 100644
> --- a/app/test-pmd/testpmd.c
> +++ b/app/test-pmd/testpmd.c
> @@ -476,6 +476,8 @@ set_default_fwd_lcores_config(void)
> 
>  	nb_lc = 0;
>  	for (i = 0; i < RTE_MAX_LCORE; i++) {
> +		if (!rte_lcore_is_enabled(i))
> +			continue;
>  		sock_num = rte_lcore_to_socket_id(i);
>  		if (new_socket_id(sock_num)) {
>  			if (num_sockets >= RTE_MAX_NUMA_NODES) { @@ -
> 485,8 +487,6 @@ set_default_fwd_lcores_config(void)
>  			}
>  			socket_ids[num_sockets++] = sock_num;
>  		}
> -		if (!rte_lcore_is_enabled(i))
> -			continue;
>  		if (i == rte_get_master_lcore())
>  			continue;
>  		fwd_lcores_cpuids[nb_lc++] = i;
> --
> 2.7.4

./dpdk/devtools/check-git-log.sh -1

Wrong headline uppercase:
        app/testpmd: Optimize membuf pool allocation
Wrong 'Fixes' reference:
        Fixes: d5aeab6542f ("app/testpmd: fix mempool creation by socket id")

Regards,

Bernard.

Re: [PATCH] app/testpmd: Optimize membuf pool allocation

[Phil Yang (Arm Technology China)]

Hi Bernard,

Thanks for you comments. I have updated the patch. Please review it.

Thanks,
Phil Yang

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Iremonger, Bernard
> Sent: Wednesday, September 12, 2018 12:23 AM
> To: dev <dev-bounces@dpdk.org>; dev@dpdk.org
> Cc: nd <nd@arm.com>; Gavin Hu (Arm Technology China) <Gavin.Hu@arm.com>
> Subject: Re: [dpdk-dev] [PATCH] app/testpmd: Optimize membuf pool allocation
> 
> Hi Gavin,
> 
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org]
> > Sent: Monday, August 27, 2018 10:33 AM
> > To: dev@dpdk.org
> > Cc: nd@arm.com; gavin.hu@arm.com
> > Subject: [dpdk-dev] [PATCH] app/testpmd: Optimize membuf pool
> > allocation
> >
> > By default, testpmd will create membuf pool for all NUMA nodes and
> > ignore EAL configuration.
> >
> > Count the number of available NUMA according to EAL core mask or core
> > list configuration. Optimized by only creating membuf pool for those nodes.
> >
> > Fixes: d5aeab6542f ("app/testpmd: fix mempool creation by socket id")
> >
> > Signed-off-by: Phil Yang <phil.yang@arm.com>
> > ---
> >  app/test-pmd/testpmd.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c index
> > ee48db2..a56af2b 100644
> > --- a/app/test-pmd/testpmd.c
> > +++ b/app/test-pmd/testpmd.c
> > @@ -476,6 +476,8 @@ set_default_fwd_lcores_config(void)
> >
> >  	nb_lc = 0;
> >  	for (i = 0; i < RTE_MAX_LCORE; i++) {
> > +		if (!rte_lcore_is_enabled(i))
> > +			continue;
> >  		sock_num = rte_lcore_to_socket_id(i);
> >  		if (new_socket_id(sock_num)) {
> >  			if (num_sockets >= RTE_MAX_NUMA_NODES) { @@ -
> > 485,8 +487,6 @@ set_default_fwd_lcores_config(void)
> >  			}
> >  			socket_ids[num_sockets++] = sock_num;
> >  		}
> > -		if (!rte_lcore_is_enabled(i))
> > -			continue;
> >  		if (i == rte_get_master_lcore())
> >  			continue;
> >  		fwd_lcores_cpuids[nb_lc++] = i;
> > --
> > 2.7.4
> 
> ./dpdk/devtools/check-git-log.sh -1
> 
> Wrong headline uppercase:
>         app/testpmd: Optimize membuf pool allocation Wrong 'Fixes' reference:
>         Fixes: d5aeab6542f ("app/testpmd: fix mempool creation by socket id")
> 
> Regards,
> 
> Bernard.
> 

[PATCH v2] app/testpmd: optimize membuf pool allocation

[Phil Yang]

By default, testpmd will create membuf pool for all NUMA nodes and
ignore EAL configuration.

Count the number of available NUMA according to EAL core mask or core
list configuration. Optimized by only creating membuf pool for those
nodes.

Fixes: c9cafcc ("app/testpmd: fix mempool creation by socket id")

Signed-off-by: Phil Yang <phil.yang@arm.com>
Acked-by: Gavin Hu <gavin.hu@arm.com>
---
 app/test-pmd/testpmd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index ee48db2..a56af2b 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -476,6 +476,8 @@ set_default_fwd_lcores_config(void)
 
 	nb_lc = 0;
 	for (i = 0; i < RTE_MAX_LCORE; i++) {
+		if (!rte_lcore_is_enabled(i))
+			continue;
 		sock_num = rte_lcore_to_socket_id(i);
 		if (new_socket_id(sock_num)) {
 			if (num_sockets >= RTE_MAX_NUMA_NODES) {
@@ -485,8 +487,6 @@ set_default_fwd_lcores_config(void)
 			}
 			socket_ids[num_sockets++] = sock_num;
 		}
-		if (!rte_lcore_is_enabled(i))
-			continue;
 		if (i == rte_get_master_lcore())
 			continue;
 		fwd_lcores_cpuids[nb_lc++] = i;
-- 
2.7.4

Re: [PATCH v2] app/testpmd: optimize membuf pool allocation

[Iremonger, Bernard]

> -----Original Message-----
> From: phil.yang@arm.com [mailto:phil.yang@arm.com]
> Sent: Wednesday, September 12, 2018 2:54 AM
> To: dev@dpdk.org
> Cc: Iremonger, Bernard <bernard.iremonger@intel.com>; gavin.hu@arm.com;
> stable@dpdk.org; phil.yang@arm.com
> Subject: [PATCH v2] app/testpmd: optimize membuf pool allocation
> 
> By default, testpmd will create membuf pool for all NUMA nodes and ignore EAL
> configuration.
> 
> Count the number of available NUMA according to EAL core mask or core list
> configuration. Optimized by only creating membuf pool for those nodes.
> 
> Fixes: c9cafcc ("app/testpmd: fix mempool creation by socket id")
> 
> Signed-off-by: Phil Yang <phil.yang@arm.com>
> Acked-by: Gavin Hu <gavin.hu@arm.com>

Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>

Re: [PATCH v2] app/testpmd: optimize membuf pool allocation

[Thomas Monjalon]

> > By default, testpmd will create membuf pool for all NUMA nodes and ignore EAL
> > configuration.
> > 
> > Count the number of available NUMA according to EAL core mask or core list
> > configuration. Optimized by only creating membuf pool for those nodes.
> > 
> > Fixes: c9cafcc ("app/testpmd: fix mempool creation by socket id")

Fixes: c9cafcc82de8 ("app/testpmd: fix mempool creation by socket id")
Cc: stable@dpdk.org

> > Signed-off-by: Phil Yang <phil.yang@arm.com>
> > Acked-by: Gavin Hu <gavin.hu@arm.com>
> 
> Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>

Applied, thanks

Re: [PATCH v2] app/testpmd: optimize membuf pool allocation

[Ferruh Yigit]

On 9/12/2018 2:54 AM, dev-bounces@dpdk.org wrote:
> By default, testpmd will create membuf pool for all NUMA nodes and
> ignore EAL configuration.
> 
> Count the number of available NUMA according to EAL core mask or core
> list configuration. Optimized by only creating membuf pool for those
> nodes.
> 
> Fixes: c9cafcc ("app/testpmd: fix mempool creation by socket id")
> 
> Signed-off-by: Phil Yang <phil.yang@arm.com>
> Acked-by: Gavin Hu <gavin.hu@arm.com>
> ---
>  app/test-pmd/testpmd.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
> index ee48db2..a56af2b 100644
> --- a/app/test-pmd/testpmd.c
> +++ b/app/test-pmd/testpmd.c
> @@ -476,6 +476,8 @@ set_default_fwd_lcores_config(void)
>  
>  	nb_lc = 0;
>  	for (i = 0; i < RTE_MAX_LCORE; i++) {
> +		if (!rte_lcore_is_enabled(i))
> +			continue;
>  		sock_num = rte_lcore_to_socket_id(i);
>  		if (new_socket_id(sock_num)) {
>  			if (num_sockets >= RTE_MAX_NUMA_NODES) {
> @@ -485,8 +487,6 @@ set_default_fwd_lcores_config(void)
>  			}
>  			socket_ids[num_sockets++] = sock_num;
>  		}
> -		if (!rte_lcore_is_enabled(i))
> -			continue;
>  		if (i == rte_get_master_lcore())
>  			continue;
>  		fwd_lcores_cpuids[nb_lc++] = i;
> 


This is causing testpmd fail for the case all cores from socket 1 and added a
virtual device which will try to allocate memory from socket 0.


 $ testpmd -l<cores from socket 1> --vdev net_pcap0,iface=lo -- -i
 ...
 Failed to setup RX queue:No mempool allocation on the socket 0
 EAL: Error - exiting with code: 1
   Cause: Start ports failed

Re: [PATCH v2] app/testpmd: optimize membuf pool allocation

[Burakov, Anatoly]

On 08-Oct-18 12:33 PM, Ferruh Yigit wrote:
> On 9/12/2018 2:54 AM, dev-bounces@dpdk.org wrote:
>> By default, testpmd will create membuf pool for all NUMA nodes and
>> ignore EAL configuration.
>>
>> Count the number of available NUMA according to EAL core mask or core
>> list configuration. Optimized by only creating membuf pool for those
>> nodes.
>>
>> Fixes: c9cafcc ("app/testpmd: fix mempool creation by socket id")
>>
>> Signed-off-by: Phil Yang <phil.yang@arm.com>
>> Acked-by: Gavin Hu <gavin.hu@arm.com>
>> ---
>>   app/test-pmd/testpmd.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
>> index ee48db2..a56af2b 100644
>> --- a/app/test-pmd/testpmd.c
>> +++ b/app/test-pmd/testpmd.c
>> @@ -476,6 +476,8 @@ set_default_fwd_lcores_config(void)
>>   
>>   	nb_lc = 0;
>>   	for (i = 0; i < RTE_MAX_LCORE; i++) {
>> +		if (!rte_lcore_is_enabled(i))
>> +			continue;
>>   		sock_num = rte_lcore_to_socket_id(i);
>>   		if (new_socket_id(sock_num)) {
>>   			if (num_sockets >= RTE_MAX_NUMA_NODES) {
>> @@ -485,8 +487,6 @@ set_default_fwd_lcores_config(void)
>>   			}
>>   			socket_ids[num_sockets++] = sock_num;
>>   		}
>> -		if (!rte_lcore_is_enabled(i))
>> -			continue;
>>   		if (i == rte_get_master_lcore())
>>   			continue;
>>   		fwd_lcores_cpuids[nb_lc++] = i;
>>
> 
> 
> This is causing testpmd fail for the case all cores from socket 1 and added a
> virtual device which will try to allocate memory from socket 0.
> 
> 
>   $ testpmd -l<cores from socket 1> --vdev net_pcap0,iface=lo -- -i
>   ...
>   Failed to setup RX queue:No mempool allocation on the socket 0
>   EAL: Error - exiting with code: 1
>     Cause: Start ports failed
> 
> 

It's an open question as to why pcap driver tries to allocate on socket 
0 when everything is on socket 1, but perhaps a better improvement would 
be to take into account not only socket ID's of lcores, but ethdev 
devices as well?

-- 
Thanks,
Anatoly

Re: [PATCH v2] app/testpmd: optimize membuf pool allocation

[Phil Yang (Arm Technology China)]

> -----Original Message-----
> From: Burakov, Anatoly <anatoly.burakov@intel.com>
> Sent: Monday, October 8, 2018 7:36 PM
> To: Ferruh Yigit <ferruh.yigit@intel.com>; dev-bounces@dpdk.org;
> dev@dpdk.org
> Cc: bernard.iremonger@intel.com; Gavin Hu (Arm Technology China)
> <Gavin.Hu@arm.com>; stable@dpdk.org; Phil Yang (Arm Technology China)
> <Phil.Yang@arm.com>
> Subject: Re: [dpdk-dev] [PATCH v2] app/testpmd: optimize membuf pool
> allocation
>
> On 08-Oct-18 12:33 PM, Ferruh Yigit wrote:
> > On 9/12/2018 2:54 AM, dev-bounces@dpdk.org wrote:
> >> By default, testpmd will create membuf pool for all NUMA nodes and
> >> ignore EAL configuration.
> >>
> >> Count the number of available NUMA according to EAL core mask or core
> >> list configuration. Optimized by only creating membuf pool for those
> >> nodes.
> >>
> >> Fixes: c9cafcc ("app/testpmd: fix mempool creation by socket id")
> >>
> >> Signed-off-by: Phil Yang <phil.yang@arm.com>
> >> Acked-by: Gavin Hu <gavin.hu@arm.com>
> >> ---
> >>   app/test-pmd/testpmd.c | 4 ++--
> >>   1 file changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c index
> >> ee48db2..a56af2b 100644
> >> --- a/app/test-pmd/testpmd.c
> >> +++ b/app/test-pmd/testpmd.c
> >> @@ -476,6 +476,8 @@ set_default_fwd_lcores_config(void)
> >>
> >>   nb_lc = 0;
> >>   for (i = 0; i < RTE_MAX_LCORE; i++) {
> >> +if (!rte_lcore_is_enabled(i))
> >> +continue;
> >>   sock_num = rte_lcore_to_socket_id(i);
> >>   if (new_socket_id(sock_num)) {
> >>   if (num_sockets >= RTE_MAX_NUMA_NODES) { @@ -
> 485,8 +487,6 @@
> >> set_default_fwd_lcores_config(void)
> >>   }
> >>   socket_ids[num_sockets++] = sock_num;
> >>   }
> >> -if (!rte_lcore_is_enabled(i))
> >> -continue;
> >>   if (i == rte_get_master_lcore())
> >>   continue;
> >>   fwd_lcores_cpuids[nb_lc++] = i;
> >>
> >
> >
> > This is causing testpmd fail for the case all cores from socket 1 and
> > added a virtual device which will try to allocate memory from socket 0.
> >
> >
> >   $ testpmd -l<cores from socket 1> --vdev net_pcap0,iface=lo -- -i
> >   ...
> >   Failed to setup RX queue:No mempool allocation on the socket 0
> >   EAL: Error - exiting with code: 1
> >     Cause: Start ports failed
> >
> >
>
> It's an open question as to why pcap driver tries to allocate on socket
> 0 when everything is on socket 1, but perhaps a better improvement would be to
> take into account not only socket ID's of lcores, but ethdev devices as well?
>
> --
> Thanks,
> Anatoly

Hi Anatoly,

Agree.

Since NUMA-aware is enabled default in testpmd, so it should be configurable for vdev port NUMA setting.

testpmd -l <cores from socket 1> --vdev net_pcap0,iface=lo --socket-mem=64 -- --numa --port-numa-config="(0,1)" --ring-numa-config="(0,1,1),(0,2,1)" -i

...
Configuring Port 0 (socket 0)
Failed to setup RX queue:No mempool allocation on the socket 0
EAL: Error - exiting with code: 1
  Cause: Start ports failed

This should be a defect.

Thanks
Phil Yang
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Re: [PATCH v2] app/testpmd: optimize membuf pool allocation

[Phil Yang (Arm Technology China)]

Hi Anatoly/Yigit,

I've prepared a patch to fix this issue. 
I will send out the patch once the internal review is done.

Thanks,
Phil Yang

> -----Original Message-----
> From: Phil Yang (Arm Technology China)
> Sent: Thursday, October 11, 2018 3:12 PM
> To: 'Burakov, Anatoly' <anatoly.burakov@intel.com>; Ferruh Yigit
> <ferruh.yigit@intel.com>; dev-bounces@dpdk.org; dev@dpdk.org
> Cc: bernard.iremonger@intel.com; Gavin Hu (Arm Technology China)
> <Gavin.Hu@arm.com>; stable@dpdk.org
> Subject: RE: [dpdk-dev] [PATCH v2] app/testpmd: optimize membuf pool
> allocation
> 
> > -----Original Message-----
> > From: Burakov, Anatoly <anatoly.burakov@intel.com>
> > Sent: Monday, October 8, 2018 7:36 PM
> > To: Ferruh Yigit <ferruh.yigit@intel.com>; dev-bounces@dpdk.org;
> > dev@dpdk.org
> > Cc: bernard.iremonger@intel.com; Gavin Hu (Arm Technology China)
> > <Gavin.Hu@arm.com>; stable@dpdk.org; Phil Yang (Arm Technology China)
> > <Phil.Yang@arm.com>
> > Subject: Re: [dpdk-dev] [PATCH v2] app/testpmd: optimize membuf pool
> > allocation
> >
> > On 08-Oct-18 12:33 PM, Ferruh Yigit wrote:
> > > On 9/12/2018 2:54 AM, dev-bounces@dpdk.org wrote:
> > >> By default, testpmd will create membuf pool for all NUMA nodes and
> > >> ignore EAL configuration.
> > >>
> > >> Count the number of available NUMA according to EAL core mask or
> > >> core list configuration. Optimized by only creating membuf pool for
> > >> those nodes.
> > >>
> > >> Fixes: c9cafcc ("app/testpmd: fix mempool creation by socket id")
> > >>
> > >> Signed-off-by: Phil Yang <phil.yang@arm.com>
> > >> Acked-by: Gavin Hu <gavin.hu@arm.com>
> > >> ---
> > >>   app/test-pmd/testpmd.c | 4 ++--
> > >>   1 file changed, 2 insertions(+), 2 deletions(-)
> > >>
> > >> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c index
> > >> ee48db2..a56af2b 100644
> > >> --- a/app/test-pmd/testpmd.c
> > >> +++ b/app/test-pmd/testpmd.c
> > >> @@ -476,6 +476,8 @@ set_default_fwd_lcores_config(void)
> > >>
> > >>   	nb_lc = 0;
> > >>   	for (i = 0; i < RTE_MAX_LCORE; i++) {
> > >> +		if (!rte_lcore_is_enabled(i))
> > >> +			continue;
> > >>   		sock_num = rte_lcore_to_socket_id(i);
> > >>   		if (new_socket_id(sock_num)) {
> > >>   			if (num_sockets >= RTE_MAX_NUMA_NODES) { @@ -
> > 485,8 +487,6 @@
> > >> set_default_fwd_lcores_config(void)
> > >>   			}
> > >>   			socket_ids[num_sockets++] = sock_num;
> > >>   		}
> > >> -		if (!rte_lcore_is_enabled(i))
> > >> -			continue;
> > >>   		if (i == rte_get_master_lcore())
> > >>   			continue;
> > >>   		fwd_lcores_cpuids[nb_lc++] = i;
> > >>
> > >
> > >
> > > This is causing testpmd fail for the case all cores from socket 1
> > > and added a virtual device which will try to allocate memory from socket 0.
> > >
> > >
> > >   $ testpmd -l<cores from socket 1> --vdev net_pcap0,iface=lo -- -i
> > >   ...
> > >   Failed to setup RX queue:No mempool allocation on the socket 0
> > >   EAL: Error - exiting with code: 1
> > >     Cause: Start ports failed
> > >
> > >
> >
> > It's an open question as to why pcap driver tries to allocate on
> > socket
> > 0 when everything is on socket 1, but perhaps a better improvement
> > would be to take into account not only socket ID's of lcores, but ethdev
> devices as well?
> >
> > --
> > Thanks,
> > Anatoly
> 
> Hi Anatoly,
> 
> Agree.
> 
> Since NUMA-aware is enabled default in testpmd, so it should be configurable
> for vdev port NUMA setting.
> 
> testpmd -l <cores from socket 1> --vdev net_pcap0,iface=lo --socket-mem=64 --
> --numa --port-numa-config="(0,1)" --ring-numa-config="(0,1,1),(0,2,1)" -i
> 
> ...
> Configuring Port 0 (socket 0)
> Failed to setup RX queue:No mempool allocation on the socket 0
> EAL: Error - exiting with code: 1
>   Cause: Start ports failed
> 
> This should be a defect.
> 
> Thanks
> Phil Yang