BENCH Minor gc changes.
BENCH Minor gc changes.

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BENCHMARK_MARKER_DO_NOT_CHANGE
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TEST BENCHMARKS
If you see a crash here, it's serious business.  Report it!
Send this number with any crash reports: 1355421931345491000
No crash to see here... continuing with testing
PASS
BenchmarkTypeAssertion	500000000	         7.63 ns/op
BenchmarkMapLookup	100000000	        30.1 ns/op
BenchmarkNilMapLookup	200000000	        10.9 ns/op
BenchmarkNilMapLookupWithNilCheck	2000000000	         0.80 ns/op
BenchmarkArrayLookup	2000000000	         0.84 ns/op
BenchmarkLayerClassSliceContains	2000000000	         1.37 ns/op
BenchmarkLayerClassMapContains	50000000	        39.3 ns/op
BenchmarkLazyNoCopyEthLayer	 2000000	       805 ns/op
BenchmarkLazyNoCopyIPLayer	 1000000	      1242 ns/op
BenchmarkLazyNoCopyTCPLayer	 1000000	      1711 ns/op
BenchmarkLazyNoCopyAllLayers	 1000000	      2139 ns/op
BenchmarkDefault	 1000000	      2538 ns/op
BenchmarkLazy	 5000000	       721 ns/op
BenchmarkNoCopy	 1000000	      2140 ns/op
BenchmarkLazyNoCopy	 5000000	       356 ns/op
BenchmarkAlloc	20000000	       102 ns/op
BenchmarkFlow	10000000	       231 ns/op
BenchmarkEndpoints	100000000	        28.4 ns/op
BenchmarkTCPLayerFromDecodedPacket	100000000	        15.5 ns/op
BenchmarkTCPLayerClassFromDecodedPacket	20000000	        76.9 ns/op
BenchmarkCheckEthernetPrefix	50000000	        37.0 ns/op
ok  	github.com/gconnell/gopacket	50.551s

PCAP BENCHMARK
Reading file once through to hopefully cache most of it
Read in file /tmp/gopacket_benchmark.pcap , total of 341401548 bytes
Opening file /tmp/gopacket_benchmark.pcap for read
Read in 1237119 packets in 4.748623s, 3.838us per packet
----------------------------------------------------------

OLD TEST BENCHMARKS
If you see a crash here, it's serious business.  Report it!
Send this number with any crash reports: 1355421997326568000
No crash to see here... continuing with testing
PASS
BenchmarkTypeAssertion	500000000	         7.46 ns/op
BenchmarkMapLookup	100000000	        30.0 ns/op
BenchmarkNilMapLookup	200000000	         8.29 ns/op
BenchmarkNilMapLookupWithNilCheck	2000000000	         0.80 ns/op
BenchmarkArrayLookup	2000000000	         0.84 ns/op
BenchmarkLayerClassSliceContains	2000000000	         1.33 ns/op
BenchmarkLayerClassMapContains	50000000	        37.4 ns/op
BenchmarkLazyNoCopyEthLayer	 2000000	       783 ns/op
BenchmarkLazyNoCopyIPLayer	 1000000	      1231 ns/op
BenchmarkLazyNoCopyTCPLayer	 1000000	      1703 ns/op
BenchmarkLazyNoCopyAllLayers	 1000000	      2137 ns/op
BenchmarkDefault	 1000000	      2516 ns/op
BenchmarkLazy	 5000000	       724 ns/op
BenchmarkNoCopy	 1000000	      2136 ns/op
BenchmarkLazyNoCopy	 5000000	       347 ns/op
BenchmarkAlloc	20000000	       102 ns/op
BenchmarkFlow	10000000	       231 ns/op
BenchmarkEndpoints	100000000	        28.0 ns/op
BenchmarkTCPLayerFromDecodedPacket	100000000	        14.3 ns/op
BenchmarkTCPLayerClassFromDecodedPacket	20000000	        77.0 ns/op
BenchmarkCheckEthernetPrefix	50000000	        38.6 ns/op
ok  	github.com/gconnell/gopacket	49.477s

OLD PCAP BENCHMARK
Reading file once through to hopefully cache most of it
Read in file /tmp/gopacket_benchmark.pcap , total of 341401548 bytes
Opening file /tmp/gopacket_benchmark.pcap for read
Read in 1237119 packets in 4.745753s, 3.836us per packet

1d4Nf6/gopacket,LrsK/gopacket,skyportsystems/gopacket,cmillward/gopacket,packetbeat/gopacket,dutchcoders/gopacket,urso/gopacket,skyportsystems/gopacket,adriantam/gopacket,UIKit0/gopacket-1,xuzhaokui/gopacket,nhooyr/gopacket,aeppert/gopacket,cmillward/gopacket,1d4Nf6/gopacket,lokikiller/gopacket,josephcopenhaver/gopacket,vtolstov/gopacket,chapayGhub/gopacket,ross-williams/gopacket,packetbeat/gopacket,breml/gopacket,dutchcoders/gopacket,josephcopenhaver/gopacket,breml/gopacket,UIKit0/gopacket-1,clarktrimble/gopacket,packetb-old/gopacket,packetb-old/gopacket,xuzhaokui/gopacket,vtolstov/gopacket,scroot/gopacket,LrsK/gopacket,ccordes-snaproute/gopacket,rouzier/gopacket,google/gopacket,packetbeat/gopacket,hkwi/gopacket,adriantam/gopacket,1d4Nf6/gopacket,ccordes-snaproute/gopacket,dutchcoders/gopacket,zerklabs/gopacket,cmillward/gopacket,nhooyr/gopacket,dazer-chen/gopacket,scroot/gopacket,zerklabs/gopacket,lokikiller/gopacket,clarktrimble/gopacket,wheelcomplex/gopacket,rouzier/gopacket,ross-williams/gopacket,skyportsystems/gopacket,ccordes-snaproute/gopacket,packetb-old/gopacket,wheelcomplex/gopacket,aeppert/gopacket,urso/gopacket,levigross/gopacket,hkwi/gopacket,packetbeat/gopacket,lokikiller/gopacket,levigross/gopacket,vtolstov/gopacket,levigross/gopacket,packetb-old/gopacket,zerklabs/gopacket,chapayGhub/gopacket,clarktrimble/gopacket,wheelcomplex/gopacket,google/gopacket,scroot/gopacket,josephcopenhaver/gopacket,breml/gopacket,google/gopacket,ross-williams/gopacket,dazer-chen/gopacket,dazer-chen/gopacket,UIKit0/gopacket-1,LrsK/gopacket,urso/gopacket,rouzier/gopacket,chapayGhub/gopacket,nhooyr/gopacket,hkwi/gopacket,aeppert/gopacket,adriantam/gopacket,xuzhaokui/gopacket