Prev: KVM MMU: optimize/cleanup for marking parent unsync
Next: KVM MMU: reduce kvm_mmu_page size
From: Andrea Gozzelino on 12 Apr 2010 04:40
Good morning,

I'm testing some Neteffect cards (Intel code E10G81GP - Neteffect
NE020.LP.1.SSR).
PC has Linux| (kernel version) 2.6.18-164.15.1.el5 | x86_64 x86_64
x86_64 GNU/Linux.

In this phase, I measure the bandwidth with the netserver/nerperf
(version netperf-2.4.5) ad hoc tests.
They work fine with TCP protocol - as OFED 1.5.1 example programs - and
they have some problems with SDP one.

I'm trying test with the command lines below:

server: LD_PRELOAD=/usr/local/lib64/libsdp.so netserver

client: LD_PRELOAD=/usr/local/lib64/libsdp.so netperf -H server_address
-c -C
-- -m 65536

The /etc/libsdp.conf file contains rules below:
use both listen * *:*
use both connect * *:*
log min-level 9 destination file libsdp.log

Client displays "Connection error: Can not allocate memory" and the
connection fails.
(original text on client log file:libsdp Error connect: failed for SDP
fd:6 with error:Cannot allocate memory)

The library path is:
/usr/local/lib64/libsdp.so


Could someone explain me how LD_PRELOAD environment variable must be
set?
I don't understand why the test work with TCP and not with SDP.
Could I work with wrong Linux kernel environment or parameters?

I don't know if there is a specific mailing list for SDP so I ask you
help.

Thank you very much,
Andrea







Andrea Gozzelino

INFN - Laboratori Nazionali di Legnaro (LNL)
Viale dell'Universita' 2
I-35020 - Legnaro (PD)- ITALIA
Tel: +39 049 8068346
Fax: +39 049 641925
Mail: andrea.gozzelino(a)lnl.infn.it

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
 | 
Pages: 1
Prev: KVM MMU: optimize/cleanup for marking parent unsync
Next: KVM MMU: reduce kvm_mmu_page size