we use linux as firewall, and met some problem on the performance of the system,such as throughput.sometimes the firewall does not work well,maybe there are too many computers which cause large throughput and connection. we wanted to test the performance of the firewall.we use netpipe to test it.but i don't think the results were accurate,because we had tested it with smartbits2000. we do not own such a device,someone else helped us to make such a test,and we can not often use the smartbits. so how to test the performnce of firewall more accurately?and is there some good way to improve the performance of linux? thanks for help.
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