Hi Alfredo,
I think our emails got crossed... but nevertheless here is ethtool -S
output... Shows no drops.
===
[marco@nprobe ~]$ sudo ethtool --statistics ens2f0
NIC statistics:
xmit_called: 0
xmit_finished: 0
rx_dropped: 0
tx_dropped: 0
csummed: 0
rx_pkts: 544668580
lro_pkts: 0
rx_bytes: 480924479057
tx_bytes: 0
===
Like i said... on my previous email, the problem might be with PFRING ?
===
=========================
Absolute Stats: [274'090 pkts total][0 pkts dropped][0.0% dropped]
[274'090 pkts rcvd][252'023'439 bytes rcvd][274'048.34 pkt/sec]*[2'015.88
Mbit/sec]*
=========================
Actual Stats: [137'201 pkts rcvd][1'000.15 ms][137'180.28 pps]*[0.99 Gbps]*
=========================
===
Cumprimentos,
*Marco Teixeira*
-----------------------------------------------------------------------------------------------------------------------------------
Serviços de Comunicações da Universidade do Minho
Campus de Azurém, 4800-058 Guimarães - Portugal
Tel.: +351 253510141, Fax: +351 253604021
*[email protected] <[email protected]> *|
*http://www.scom.uminho.pt <http://www.scom.uminho.pt/>*
-----------------------------------------------------------------------------------------------------------------------------------
2018-01-16 16:21 GMT+00:00 Alfredo Cardigliano <[email protected]>:
> Hi Marco
> it seems there is no packet loss, did you check the interface stats with
> ethtool -S to check if pats are getting lost at interface level?
>
> Best Regards
> Alfredo
>
> On 16 Jan 2018, at 17:17, Marco Teixeira <[email protected]> wrote:
>
> Hello,
>
> Is PF_RING the culprit here ?? How to tweak this?
> Absolute stats showing around 2Gb/s and Actual stats near 1Gb/s...
>
> ===
> [marco@nprobe ~]$ sudo pfcount -i ens2f0
> Using PF_RING v.7.0.0
> Capturing from ens2f0 [mac: D8:D3:85:A0:12:50][if_index: 5][speed:
> 10000Mb/s]
> # Device RX channels: 1
> # Polling threads: 1
> Dumping statistics on /proc/net/pf_ring/stats/2553-ens2f0.2
> =========================
> Absolute Stats: [136'889 pkts total][0 pkts dropped][0.0% dropped]
> [136'889 pkts rcvd][128'561'396 bytes rcvd]
> =========================
>
> =========================
> Absolute Stats: [274'090 pkts total][0 pkts dropped][0.0% dropped]
> [274'090 pkts rcvd][252'023'439 bytes rcvd][274'048.34 pkt/sec][2'015.88
> Mbit/sec]
> =========================
> Actual Stats: [137'201 pkts rcvd][1'000.15 ms][137'180.28 pps][0.99 Gbps]
> =========================
>
> ===
>
> Cumprimentos,
>
> *Marco Teixeira*
>
> ------------------------------------------------------------
> -----------------------------------------------------------------------
> Serviços de Comunicações da Universidade do Minho
> Campus de Azurém, 4800-058 Guimarães - Portugal
> Tel.: +351 253510141, Fax: +351 253604021
> *[email protected] <[email protected]> *|
> *http://www.scom.uminho.pt <http://www.scom.uminho.pt/>*
> ------------------------------------------------------------
> -----------------------------------------------------------------------
>
> 2018-01-16 15:52 GMT+00:00 Marco Teixeira <[email protected]>:
>
>> Hi list,
>>
>> Do you know of any limitation (license wise) on the capture speed of
>> nProbe?
>> Can't seem to go above 1Gb/s, but machine still has plenty of CPU
>> available, and PCIe 10Gb/s NIC...
>>
>> ===
>> Build OS: CentOS Linux release 7.4.1708 (Core)
>> GIT rev: 8.2-stable:fe33351b54075fa76a242548fb830e2bdf1d9224:
>> 20180112
>> Edition: nProbe Pro
>> License Type: Permanent License
>> ===
>>
>> ===
>> [marco@nprobe ~]$ more /proc/net/pf_ring/stats/1361-ens2f0.1
>> Duration: 0:00:33:05:185
>> Bytes: 238825829235
>> Packets: 272020616
>> Dropped: 0
>>
>> [marco@nprobe ~]$ more /proc/net/pf_ring/1361-ens2f0.1
>> Bound Device(s) : ens2f0
>> Active : 1
>> Breed : Standard
>> Appl. Name : nProbe
>> Socket Mode : RX only
>> Capture Direction : RX+TX
>> Sampling Rate : 1
>> IP Defragment : No
>> BPF Filtering : Disabled
>> Sw Filt Hash Rules : 0
>> Sw Filt WC Rules : 0
>> Sw Filt Hash Match : 0
>> Sw Filt Hash Miss : 0
>> Hw Filt Rules : 0
>> Poll Pkt Watermark : 8
>> Num Poll Calls : 0
>> Channel Id Mask : 0xFFFFFFFFFFFFFFFF
>> VLAN Id : 65535
>> Slot Version : 16 [7.0.0]
>> Min Num Slots : 4108
>> Bucket Len : 128
>> Slot Len : 336 [bucket+header]
>> Tot Memory : 1388544
>> Tot Packets : 276360318
>> Tot Pkt Lost : 0
>> Tot Insert : 276360318
>> Tot Read : 276360318
>> Insert Offset : 711632
>> Remove Offset : 711632
>> Num Free Slots : 4108
>> Reflect: Fwd Ok : 0
>> Reflect: Fwd Errors: 0
>> ===
>>
>> Regards,
>> Marco
>>
>
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