On Fri, Aug 13, 2010 at 02:00:22PM -0700, Guy Harris wrote: > No. I forgot that the availability of the memory-mapped pcap > mechanism isn't determined by the configure script, it's determined > by what the system includes offer. > > Instead, in pcap-linux.c, just #if 0 out the > > /* check for memory mapped access avaibility. We assume every needed > * struct is defined if the macro TPACKET_HDRLEN is defined, because it > * uses many ring related structs and macros */
Would it be possible to support disabling mmaped access in runtime with an environment variable? I had one user complaining about slow startup of tcpdump -s 0 and it seems that there is not much we can do about it as kernel has to allocated large blocks of continuous memory. -- Miroslav Lichvar - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
