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From: Taisuke Y. <tya...@li...> - 2004-07-11 17:57:45
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Hi. I've set up 2 coLinux instances with NFS client-server configuration to save diskspace, but performance is way slower than I expected. To quantify my experience, I dis some benchmarking with netperf. In following data, "co00" is the NFS server and "co01" is the client. They both use TAP driver bridged by Windows "Network Bridge" for network connection. co00:/root# netperf TCP STREAM TEST to localhost Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 8599.03 co00:/root# co01:/root# netperf -H 192.168.100.100 TCP STREAM TEST to 192.168.100.100 Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.02 23.39 co01:/root# As you can see, TCP thoughput between 2 colinux instances is about 400 times slower than loopback. Is this a current limitation, or am I doing something wrong? Since there's no physical device between these two, I'm wondering if there's any coLinux parameter to increase network performance. Thanks in advance. -- 012345678901234567890123456789012345678901234567890123456789012345678901234 Taisuke Yamada <<tya...@sp...>> Message to my public address may not be handled in a timely manner. Message to my "SPAM honeypot" address will be registered as a SPAM. For a direct contact, please use my private address on my namecard. |