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Differential D12151

usr.bin/netstat: don't call kresolve_list() if using live kernel
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Authored by nikita_elyzion.net on Aug 29 2017, 1:42 PM.
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rS323666: MFC r323016:
rS323016: Don't call kresolv_list() if using netstat on live kernel
Summary

kresolve_list() is doing 372 kldsym() calls in my tests for a simple netstat.
Calling it only for non-live image improves the running time and CPU usage when collecting stats for the running kernel.

Note: I tested it only on stable/11

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rS FreeBSD src repository - subversion
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head/
usr.bin/
netstat/
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head/usr.bin/netstat/main.c

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