To Luigi and to whom may be able to help
Hello all.
Is it possible to reduce the size of the memory buffer allocated by the
netmap module?
I'm asking this because I was implementing some testing code, using NICs
and a Tap device in an OpenWRT VM with 64MB of RAM.
Because of the small RAM amount,
Update:
I noticed that the netmap module was still crashing, after changing the
OpenWRT VM ram to 256MB. I now raised to 1GB and it no longer crashed. The
netmap module is now consuming about 350MB of Ram, which for my objectives
is just too much...
On 30 December 2014 at 14:06, Carlos Ferreira
you can reduce the amount of ram (buffers, mostly) by
tweaking the values in netmap_mem2.c ::
struct netmap_obj_params netmap_params[NETMAP_POOLS_NR] = {
...
}
or you can simply modify the constant
netmap_mem2.h:#define NETMAP_BUF_MAX_NUM 20*4096*2
to something smaller that suits an openwrt box
Ok thanks. I was hoping not having to recompile the module, but it's ok.
Thank you for the info!
On 30 December 2014 at 15:38, Luigi Rizzo ri...@iet.unipi.it wrote:
you can reduce the amount of ram (buffers, mostly) by
tweaking the values in netmap_mem2.c ::
struct netmap_obj_params
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194672
--- Comment #3 from Renato Botelho ga...@freebsd.org ---
Created attachment 151123
-- https://bugs.freebsd.org/bugzilla/attachment.cgi?id=151123action=edit
2nd attempt, fix also advbase check
There is one more issue, advbase should be =
You mean netmap_mem2.c ? It was there where I found the NETMAP_BUF_MAX_NUM
define.
On 30 December 2014 at 15:43, Carlos Ferreira carlosmf...@gmail.com wrote:
Ok thanks. I was hoping not having to recompile the module, but it's ok.
Thank you for the info!
On 30 December 2014 at 15:38, Luigi
By the way, another question.
Is there a way to not compile the code regarding the VALE switch? I'm only
interested in using netmap with Tap Devices and NICs, so I was hoping to
save some memory.
On 30 December 2014 at 15:47, Carlos Ferreira carlosmf...@gmail.com wrote:
You mean netmap_mem2.c ?
you don't need to recompile, on linux those values are accessible
under /sys/modules/netmal_lin/parameters
(on FreeBSD they are sysctl variables)
cheers
luigi
On Tue, Dec 30, 2014 at 4:43 PM, Carlos Ferreira carlosmf...@gmail.com wrote:
Ok thanks. I was hoping not having to recompile the
you can #undefine WITH_VALE.
But it is only 20K of code (and 150K of data structures, which you
can further reduce by lowering NM_BRIDGS).
The saving is probably not worth the effort.
cheers
luigi
On Tue, Dec 30, 2014 at 5:08 PM, Carlos Ferreira carlosmf...@gmail.com wrote:
By the way, another
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194672
--- Comment #4 from Renato Botelho ga...@freebsd.org ---
Please ignore second patch, it has issues, will send a new one shortly
--
You are receiving this mail because:
You are the assignee for the bug.
Ok, I'm having some trouble in tuning the amount of memory for netmap.
I have been following the man page from FreeBSD
https://www.freebsd.org/cgi/man.cgi?query=netmapsektion=4#end in other
to understand the values at /sys/modules/netmap/parameters for linux but
I'm having some trouble in
Hi,
I have two network interfaces as follows:
sis0: NatSemi DP8381[56] 10/100BaseTX port 0xa400-0xa4ff mem
0xd580-0xd5800fff irq 9 at device 9.0 on pci0
sis1: NatSemi DP8381[56] 10/100BaseTX port 0x9400-0x94ff mem
0xd480-0xd4800fff irq 11 at device 12.0 on pci0
When sis0 breaks down,
On Tue, Dec 30, 2014 at 6:38 PM, Carlos Ferreira carlosmf...@gmail.com wrote:
Ok, I'm having some trouble in tuning the amount of memory for netmap.
I have been following the man page from FreeBSD in other to understand the
values at /sys/modules/netmap/parameters for linux but I'm having some
Well... due to budget constraints I'm using USB 100Mb ports :)
This is for experimental purposes only for now.
Btw, can netmap work with wireless interfaces? I believe you once answered
this question, but I could not find it in the mail list.
On 30 December 2014 at 18:40, Luigi Rizzo
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194672
--- Comment #5 from Renato Botelho ga...@freebsd.org ---
Created attachment 151128
-- https://bugs.freebsd.org/bugzilla/attachment.cgi?id=151128action=edit
3rd version - Fix advskew and advbase checks, set default advbase for new
entries
On Tue, 30 Dec 2014 19:02:30 +0100 Martin Birgmeier la5lb...@aon.at wrote
Hi,
I have two network interfaces as follows:
sis0: NatSemi DP8381[56] 10/100BaseTX port 0xa400-0xa4ff mem
0xd580-0xd5800fff irq 9 at device 9.0 on pci0
sis1: NatSemi DP8381[56] 10/100BaseTX port 0x9400-0x94ff
On Dec 30, 2014 10:02 AM, Martin Birgmeier la5lb...@aon.at wrote:
Hi,
I have two network interfaces as follows:
sis0: NatSemi DP8381[56] 10/100BaseTX port 0xa400-0xa4ff mem
0xd580-0xd5800fff irq 9 at device 9.0 on pci0
sis1: NatSemi DP8381[56] 10/100BaseTX port 0x9400-0x94ff mem
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