[dpdk-dev] dpdk checksum

Hi all, I have a question regarding dpdk checksum. If the hardware does not support hardware checksum, but the dpdk application sets to allow the hardware do the checksum. What will happen? Driver will automatically find hardware checksum is not supported, it will use software calculate the

[dpdk-dev] sr-iov

Hi all, I have a question related to sr-iov. The problem is that there are two machines directly connected. On one machine, create an VF and assign IP to it. From another machine, ping it. VF receives the packets. ifconfig has tx increase. tcpdump shows the arp reply. But ethtool tx is 0. an

[dpdk-dev] two different threads polls the same port, different queues, why the throughput is the same

I do not have any lock/critical sections in my code. I have logs to print out the core id, src port, dst port and queue id. worker 0 runs on core 1, run macswap very light, the throughput is 4.5Mpps. worker 1 runs on core2, is a load balancer heavy, the throughput is also 4.5Mpps. This does

[dpdk-dev] two different threads polls the same port, different queues, why the throughput is the same

Hi all, I have two threads process the packets with different ways. thread A (core 0) is very heavy, thread B (core 1) is very light. If I just run each of them, their throughput is huge different with small packet. Thread A polls queue 0 of port 0, thread B polls queue 1 of port 0. If I ru

[dpdk-dev] lpm performance

Got it. Thanks for your guidance! ? 2016-09-20 22:41:36?"Andriy Berestovskyy" ??? >AFAIR Intel hardware should do the 10Gbit/s line rate (i.e. ~14,8 >MPPS) with one flow and LPM quite easily. Sorry, I don't have numbers >to share at hand. > >Regarding the tool please see the pktgen-dpdk

[dpdk-dev] lpm performance

Thanks so much for your reply! Usually how did you test lpm performance with variety of destination addresses? use which tool send the traffic? how many flows rules will you add? what's the performance you get? At 2016-09-20 17:41:13, "Andriy Berestovskyy" wrote: >Hey, >You are correct.

[dpdk-dev] lpm performance

Hi all, Does anyone test IPv4 performance? If so, what's the throughput? I can get almost 10Gb with 64 byte packets. But before the test, I would expect it will be less than 10G. I thought the performance will not be affected by the number of rule entires. But the throughput will be relate

[dpdk-dev] rte_eth_rx_burst reports bug by safecode (one memory protection tool)

Hi all, I am using a memory safe tool safecode http://safecode.cs.illinois.edu/ compiling dpdk application. If I do not do the memory safety checking, it works correctly. But my main aim is to evaluate if using safecode protects the memory, what's the overhead? The related compiling o

[dpdk-dev] dpdk example qos meter compile error

Please ignore this message. It works. I just made a mistake by myself. Sorry. At 2016-08-01 06:10:24, "??" wrote: >Hi, > > >I want to compile and run dpdk example qos_meter. But it shows compile errors. > > >qos_meter/rte_policer.h:34:20: error: #include nested too deeply > >qos_meter/r

[dpdk-dev] dpdk example qos meter compile error

Hi, I want to compile and run dpdk example qos_meter. But it shows compile errors. qos_meter/rte_policer.h:34:20: error: #include nested too deeply qos_meter/rte_policer.h:35:25: error: #include nested too deeply qos_meter/rte_policer.h:38:43: error: unknown type name ?uint32_t? ... I am

[dpdk-dev] EAL: memzone_reserve_aligned_thread_unsafe(): No more room in config

Hi all, When using dpdk multi process client server example, I create many clients. After the number of clients 1239, I met this error: EAL: memzone_reserve_aligned_thread_unsafe(): No more room in config RING: Cannot reserve memory EAL: Error - exiting with code: 1 Cause: Cannot create t

[dpdk-dev] rte_hash_del_key crash in multi-process environment

Thanks so much! That fixes my problem. At 2016-04-19 15:39:16, "De Lara Guarch, Pablo" wrote: >Hi, > >> -Original Message- >> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of ?? >> Sent: Tuesday, April 19, 2016 5:58 AM >> To: De Lara Guarch, Pablo >> Cc: Thomas Monjalon; Go

[dpdk-dev] rte_hash_del_key crash in multi-process environment

Hi all, In the multi-process environment, before I met a bug when calling rte_hash_lookup_with_hash. Using Dhana's patch fixed my problem. Now I need to remove the flow in the multi-process environment, the system gets crashed when calling rte_hash_del_key function. The following is the gdb t

[dpdk-dev] [PATCH] hash: fix memcmp function pointer in multi-process environment

Thanks so much for your patch! Your patch exactly solves my bug. :) At 2016-03-15 08:57:29, "Dhananjaya Eadala" wrote: Hi I looked at your info from gdb and source code.

[dpdk-dev] dpdk hash lookup function crashed (segment fault)

Thanks for your reply! I used one patch solve my problem someone posted last night in the mailing list. At 2016-03-14 21:02:13, "Kyle Larose" wrote: >Hello, > >On Sun, Mar 13, 2016 at 10:38 AM, ?? wrote: >> Hi all, >> When I use the dpdk lookup function, I met the segment fault problem. Can

[dpdk-dev] [PATCH] hash: fix memcmp function pointer in multi-process environment

BTW, the following is my backtrace when the system crashes. Program received signal SIGSEGV, Segmentation fault. 0x004883ab in rte_hash_reset (h=0x0) at /home/zhangwei1984/timopenNetVM/dpdk-2.2.0/lib/librte_hash/rte_cuckoo_hash.c:444 444while (rte_ring_dequeue(h->free_slots, &ptr)

[dpdk-dev] [PATCH] hash: fix memcmp function pointer in multi-process environment

I met a problem which I used the DPDK hash table for multi processes. One started as primary process and the other as secondary process. I based on the client and server multiprocess example. My aim is that server creates a hash table, then share it to the client. The client will read and writ

[dpdk-dev] dpdk hash lookup function crashed (segment fault)

Hi all, When I use the dpdk lookup function, I met the segment fault problem. Can anybody help to look at why this happens. I will put the aim what I want to do and the related piece of code, and my debug message, This problem is that in dpdk multi process - client and server example, dpdk-

[dpdk-dev] share a table

Hi all, Now I use the DPDK multiple process example : client -server. I want the server create a hash table, then share it to client. Currently what I do is to create_hash_table function returns a pointer which points to the flow table (inside the create_hash_table function, I use rte_calloc

[dpdk-dev] dpdk multi process increase the number of mbufs, throughput gets dropped

Hi all, When running the multi process example, does anybody know that why increasing the number of mbufs, the performance gets dropped. In multi process example, there are two macros which are related to the number of mbufs #defineMBUFS_PER_CLIENT1536 | | #defineMBUFS_PER_PORT1536 | | |

[dpdk-dev] How kernel can share the mem from dpdk hugepage?

Hi all, I want to ask does anybody know how kernel can share the info from dpdk hugepage. My project has a requirement which kernel needs to get some info from dpdk application. Eg, in multi-process example, every client has a shared ring buffer with server. The shared ring contains some meta

[dpdk-dev] dpdk 1.8.0 disable burst problem

Hi all, I am using the dpdk example dpdk-1.8.0/examples/multi_process/client_server_mp on ubuntu 14.04. I need to disable the batch. At first, I just change the macro in mp_server/main.c and mp_client/client.c #define PACKET_READ_SIZE 32 to 1 The server and the client can not receive any pa