08-09-2010
OBTW, just to keep the record straight, most large forums that are not part of a commercial software or hardware company, pay for advertising. I see their Adsense ads all over the net. LQ is one example. There are myriad others that do.
We have run Adsense ads in the past on other web sites. It can get pretty expensive and the results are mixed.
We had the largest number of actively monthly users when we were sending out automated reminder emails to inactive people, but we stopped it because of a few complaints about the emails.
I agree that being welcoming and accommodating to novices and new members (all members) is what keeps the community growing. But there is also a difference between keeping registered users who have posted to post; and getting visitors to register. We get huge amounts of visits each month, millions of unique visitors each month. Most find the answer to their problem and never register (that is a "good thing") and some register, post one question, and don't return (honestly, I have done that countless times as well with working a specific problem).
So how do we keep registered users participating? That is the question, I think.
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LEARN ABOUT CENTOS
rdma_reg_read
RDMA_REG_READ(3) Librdmacm Programmer's Manual RDMA_REG_READ(3)
NAME
rdma_reg_read - register data buffer(s) for remote RDMA read access.
SYNOPSIS
#include <rdma/rdma_verbs.h>
struct ibv_mr * rdma_reg_read (struct rdma_cm_id *id, void *addr, size_t length);
ARGUMENTS
id A reference to a communication identifier where the message buffer(s) will be used.
addr The address of the memory buffer(s) to register.
length The total length of the memory to register.
DESCRIPTION
Registers a memory buffer that will be accessed by a remote RDMA read operation. Memory buffers registered using rdma_reg_read may be tar-
geted in an RDMA read request, allowing the buffer to be specified on the remote side of an RDMA connection as the remote_addr of
rdma_post_read, or similar call.
RETURN VALUE
Returns a reference to the registered memory region on success, or NULL on error. If an error occurs, errno will be set to indicate the
failure reason.
NOTES
rdma_reg_read is used to register a data buffer that will be the target of an RDMA read operation on a queue pair associated with an
rdma_cm_id. The memory buffer is registered with the proteection domain associated with the idenfier. The start of the data buffer is
specified through the addr parameter, and the total size of the buffer is given by length.
All data buffers should be registered before being posted as a work request. Users must deregister all registered memory by calling
rdma_dereg_mr.
SEE ALSO
rdma_cm(7), rdma_create_id(3), rdma_create_ep(3), rdma_reg_msgs(3), rdma_reg_write(3), ibv_reg_mr(3), ibv_dereg_mr(3), rdma_post_read(3)
librdmacm 2010-07-19 RDMA_REG_READ(3)