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svn-commit | 1 Jul 2011 15:34

r4705 - trunk/PF_RING/doc

Author: cardigliano
Date: 2011-07-01 15:34:46 +0200 (Fri, 01 Jul 2011)
New Revision: 4705

Modified:
   trunk/PF_RING/doc/PF_RING-UsersGuide.pages
   trunk/PF_RING/doc/UsersGuide.pdf
Log:
doc - examples and DNA on VMs
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svn-commit | 2 Jul 2011 12:55

r4706 - trunk/PF_RING/userland/lib

Author: cardigliano
Date: 2011-07-02 12:55:31 +0200 (Sat, 02 Jul 2011)
New Revision: 4706

Modified:
   trunk/PF_RING/userland/lib/pfring.c
   trunk/PF_RING/userland/lib/pfring_mod_dna.c
   trunk/PF_RING/userland/lib/pfring_mod_dna.h
Log:
removed vdna support (use dna + passthrough on VMs)
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svn-commit | 5 Jul 2011 11:15

r4707 - trunk/PF_RING/kernel

Author: cardigliano
Date: 2011-07-05 11:15:46 +0200 (Tue, 05 Jul 2011)
New Revision: 4707

Modified:
   trunk/PF_RING/kernel/pf_ring.c
Log:
bug 115 fix
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headers
svn-commit | 5 Jul 2011 23:27

r4708 - trunk/PF_RING/userland/snort/daq-0.5

Author: cardigliano
Date: 2011-07-05 23:27:05 +0200 (Tue, 05 Jul 2011)
New Revision: 4708

Modified:
   trunk/PF_RING/userland/snort/daq-0.5/configure
Log:
daq configure
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Adayadil Thomas | 6 Jul 2011 00:14
Picon

Help needed in understanding the relation between cluster num and min_num_slots

Hello and greetings!

Is there a reason for having the CLUSTER_LEN set to 8 in pf_ring
kernel module? And how is it related to the module parameter
min_num_slots and caplen?
By default, the min_num_slots will be 4096. If I change that to 16384,
and try adding 8 sockets to a cluster I get a kernel panic. I am
trying to understand the relation between the parameters here.

In all cases when the clusternum * caplen * min_num_slots is greater
than a certain number, the vmalloc_user in the kernel gives issues and
a panic happens. I don't know the reason, is there a limit to how much
vmalloc_user() can allocate?

Please note that this is for linux kernel 2.6.18.194.

Thanks for the help.
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Luca Deri | 6 Jul 2011 13:50

Re: Help needed in understanding the relation between cluster num and min_num_slots

Thomas
the cluster size set to 8 is to set a reasonable upper limit. What would you expect as limit?

Also, why do you want to increase the number of slots? It has been configurable as people might experiment
with it, but in general enlarging the number of slots you have a larger buffer (and thus more time to handle
traffic peaks) but at the same time you increase cache misses and thus performance. if the vmalloc cannot
find memory, it can report the error. So I don't see major benefits changing defaults.

Luca

On Jul 6, 2011, at 12:14 AM, Adayadil Thomas wrote:

> Hello and greetings!
> 
> Is there a reason for having the CLUSTER_LEN set to 8 in pf_ring
> kernel module? And how is it related to the module parameter
> min_num_slots and caplen?
> By default, the min_num_slots will be 4096. If I change that to 16384,
> and try adding 8 sockets to a cluster I get a kernel panic. I am
> trying to understand the relation between the parameters here.
> 
> In all cases when the clusternum * caplen * min_num_slots is greater
> than a certain number, the vmalloc_user in the kernel gives issues and
> a panic happens. I don't know the reason, is there a limit to how much
> vmalloc_user() can allocate?
> 
> Please note that this is for linux kernel 2.6.18.194.
> 
> Thanks for the help.
> _______________________________________________
(Continue reading)

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svn-commit | 6 Jul 2011 14:33

r4709 - in trunk/PF_RING/userland: examples lib

Author: cardigliano
Date: 2011-07-06 14:33:53 +0200 (Wed, 06 Jul 2011)
New Revision: 4709

Modified:
   trunk/PF_RING/userland/examples/Makefile
   trunk/PF_RING/userland/examples/pfcount.c
   trunk/PF_RING/userland/lib/pfring_mod_dag.c
   trunk/PF_RING/userland/lib/pfring_mod_dag.h
Log:
DAG support update
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svn-commit | 7 Jul 2011 10:03

r4710 - trunk/PF_RING/userland/libpcap-1.1.1-ring

Author: cardigliano
Date: 2011-07-07 10:03:11 +0200 (Thu, 07 Jul 2011)
New Revision: 4710

Modified:
   trunk/PF_RING/userland/libpcap-1.1.1-ring/pcap-linux.c
Log:
blocking read with pcap-pfring
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svn-commit | 7 Jul 2011 22:25

r4711 - trunk/PF_RING/userland/lib

Author: cardigliano
Date: 2011-07-07 22:25:57 +0200 (Thu, 07 Jul 2011)
New Revision: 4711

Modified:
   trunk/PF_RING/userland/lib/pfring.c
   trunk/PF_RING/userland/lib/pfring_mod_dag.c
   trunk/PF_RING/userland/lib/pfring_mod_dag.h
Log:
dag module fix
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svn-commit | 7 Jul 2011 23:33

r4712 - trunk/PF_RING/userland/libpcap-1.1.1-ring

Author: cardigliano
Date: 2011-07-07 23:33:13 +0200 (Thu, 07 Jul 2011)
New Revision: 4712

Modified:
   trunk/PF_RING/userland/libpcap-1.1.1-ring/pcap-linux.c
Log:
non-blocking read fix
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Gmane