tcpdump mailing list archives
A new feature request - gzip compression while using -w option
From: Srihari Vijayaraghavan <harisri () bigpond com>
Date: Wed, 26 Mar 2003 23:40:44 +1100
Hello, In my tests when I tried compressing the tcpdump captured data file using gzip, it did approx 30 folds compression (64 MB file became 1.8 MB). I am wondering if there a possibility of -g (for gzip) which will work together with -w option in writing the file to the disk using gzip compression. In our case we are trying to capture approx 50000 packets/sec on 6 interfaces (approx 100 bytes packets), it fills up plenty of hard drive space, so having gzip would minimise that and also it wouldn't stress the IO when we have to transfer the data across to a different computer over the network regularly (it's fine even if tcpdump has to use more memory for better compression etc due to this feature, at least in our case) If this isn't a good idea for tcpdump project, can someone please give me some help in what function on what .c files in the tcpdump source tree would be the appropriate place to start implementing that feature? (I am no C programmer, at least not yet, but I will give it a try) Thanks -- Hari harisri () bigpond com - This is the TCPDUMP workers list. It is archived at http://www.tcpdump.org/lists/workers/index.html To unsubscribe use mailto:tcpdump-workers-request () tcpdump org?body=unsubscribe
Current thread:
- Fwd: Linux - Packet socket: mmapped IO Srihari Vijayaraghavan (Mar 16)
- Re: Fwd: Linux - Packet socket: mmapped IO Guy Harris (Mar 16)
- A new feature request - gzip compression while using -w option Srihari Vijayaraghavan (Mar 26)
- Re: A new feature request - gzip compression while using -w option David Young (Mar 26)
- Re: A new feature request - gzip compression while using -w option John Hawkinson (Mar 26)
- Re: A new feature request - gzip compression while using -w option David Young (Mar 26)