cv
? 2013-8-20?12:37?"Bob Chen" ???
> Hi folks,
>
> Is there anyone who has researched the mechanism of DPDK ring buffer by any
> chance? I was trying to understand the multi-producer and muti-consumer
> scenario, the CAS(compare and swap) operation is not an obstacle to me, and
> from what
Hi Bob,
> do {
> prod_head = r->prod.head;
> cons_tail = r->cons.tail;
> prod_next = prod_head + n;
> success = rte_atomic32_cmpset(&r->prod.head, prod_head,
> prod_next);
>
> /*
> * Why no
Hi folks,
Is there anyone who has researched the mechanism of DPDK ring buffer by any
chance? I was trying to understand the multi-producer and muti-consumer
scenario, the CAS(compare and swap) operation is not an obstacle to me, and
from what I can tell, the method which DPDK adopts is basica
Hi folks,
Is there anyone who has researched the mechanism of DPDK ring buffer by any
chance? I was trying to understand the multi-producer and muti-consumer
scenario, the CAS(compare and swap) operation is not an obstacle to me, and
from what I can tell, the method which DPDK adopts is basica
Hello Ben,
> OK, here is the question: Why DPDK has to maintain that public prod_tail
> structure? Is it really necessary to endure a while loop here?
If you remove this wait loop, you can trigger an issue. Imagine a case
where core 0 wants to add an object in the ring: it does the CAS,
modifying
Bob
-Original Message-
From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Olivier MATZ
Sent: Tuesday, August 20, 2013 4:22 PM
To: Bob Chen
Cc: dev
Subject: Re: [dpdk-dev] A question of DPDK ring buffer
Hello Ben,
> OK, here is the question: Why DPDK has to maintain that public
> p
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