nDPId: Reduced flow-updates for TCP flows to 1/4 of the timeout value.

 * nDPId: Fixed broken validation tests.
 * nDPId: Removed TICK_RESOLUTION, not required anymore.
 * c-collectd: Improved total layer4 payload calculation/update handling.
 * c-collectd: Updated RRD Graph script according to total layer4 payload changes.
 * py-flow-info.py: Fixed several bugs and syntax errors.
 * Python scripts: Added dirname(argv[0]) as search path for nDPIsrvd.py.
 * nDPIsrvd&nDPId-test: Fixed missing EPOLLERR check.

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>

1 files changed, 19 insertions, 19 deletions

diff --git a/test/results/tunnelbear.pcap.out b/test/results/tunnelbear.pcap.out
index 4b7f82cb3..6af004c2e 100644
--- a/test/results/tunnelbear.pcap.out
+++ b/test/results/tunnelbear.pcap.out
@@ -1,4 +1,4 @@
-00476{"daemon_event_id":1,"daemon_event_name":"init","thread_id":0,"packet_id":0,"source":"tunnelbear.pcap","alias":"nDPId-test","max-flows-per-thread":2048,"max-idle-flows-per-thread":64,"tick-resolution":1000,"reader-thread-count":1,"flow-scan-interval":10000000,"generic-max-idle-time":600000000,"icmp-max-idle-time":120000000,"udp-max-idle-time":180000000,"tcp-max-idle-time":3265032704,"max-packets-per-flow-to-send":3,"max-packets-per-flow-to-process":32,"global_ts_usec":0}
+00490{"daemon_event_id":1,"daemon_event_name":"init","thread_id":0,"packet_id":0,"source":"tunnelbear.pcap","alias":"nDPId-test","max-flows-per-thread":2048,"max-idle-flows-per-thread":64,"reader-thread-count":1,"flow-scan-interval":10000000,"generic-max-idle-time":600000000,"icmp-max-idle-time":120000000,"udp-max-idle-time":180000000,"tcp-max-idle-time":3265032704,"max-packets-per-flow-to-send":3,"max-packets-per-flow-to-process":32,"max-packets-per-flow-to-analyse":32,"global_ts_usec":0}
 00553{"daemon_event_id":4,"daemon_event_name":"status","thread_id":0,"packet_id":1,"source":"tunnelbear.pcap","alias":"nDPId-test","packets-captured":1,"packets-processed":0,"total-skipped-flows":0,"total-l4-payload-len":0,"total-not-detected-flows":0,"total-guessed-flows":0,"total-detected-flows":0,"total-detection-updates":0,"total-updates":0,"current-active-flows":0,"total-active-flows":0,"total-idle-flows":0,"total-compressions":0,"total-compression-diff":0,"current-compression-diff":0,"total-events-serialized":2,"global_ts_usec":1655734524312623}
 00752{"flow_event_id":1,"flow_event_name":"new","thread_id":0,"packet_id":1,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":1,"flow_state":"info","flow_src_packets_processed":1,"flow_dst_packets_processed":0,"flow_first_seen":1655734524312623,"flow_src_last_pkt_time":1655734524312623,"flow_dst_last_pkt_time":1655734524312623,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":0,"flow_dst_max_l4_payload_len":0,"flow_src_tot_l4_payload_len":0,"flow_dst_tot_l4_payload_len":0,"midstream":0,"thread_ts_usec":1655734524312623,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.154.236","src_port":50178,"dst_port":443,"l4_proto":"tcp","flow_datalink":1,"flow_max_packets":3}
 00541{"packet_event_id":2,"packet_event_name":"packet-flow","thread_id":0,"packet_id":1,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":1,"flow_packet_id":1,"flow_src_last_pkt_time":1655734524312623,"flow_dst_last_pkt_time":1655734524312623,"flow_idle_time":3285032704,"pkt_oversize":false,"pkt_caplen":74,"pkt_type":2048,"pkt_l3_offset":14,"pkt_l4_offset":34,"pkt_len":74,"pkt_l4_len":40,"thread_ts_usec":1655734524312623,"pkt":"ABoRAAACABoRAAABCABFAAA8wQ5AAEAGbKcKCAABaBGa7MQCAbs6\/WaPAAAAAKAC\/\/8qygAAAgQFtAQCCAoBY6eBAAAAAAEDAwg="}
@@ -25,18 +25,18 @@
 01060{"flow_event_id":7,"flow_event_name":"detected","thread_id":0,"packet_id":21,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":4,"flow_state":"info","flow_src_packets_processed":3,"flow_dst_packets_processed":1,"flow_first_seen":1655734524343748,"flow_src_last_pkt_time":1655734524347219,"flow_dst_last_pkt_time":1655734524345914,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":517,"flow_dst_max_l4_payload_len":0,"flow_src_tot_l4_payload_len":517,"flow_dst_tot_l4_payload_len":0,"midstream":0,"thread_ts_usec":1655734524347219,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.115.40","src_port":45108,"dst_port":443,"l4_proto":"tcp","ndpi": {"confidence": {"6":"DPI"},"proto":"TLS.TunnelBear","proto_id":"91.299","encrypted":1,"breed":"Acceptable","category_id":2,"category":"VPN","hostname":"api.polargrizzly.com","tls": {"version":"TLSv1.2","ja3":"e9ec38c2b40ff3e300e9975dd7619902","ja3s":"","unsafe_cipher":0,"cipher":"TLS_NULL_WITH_NULL_NULL","alpn":"h2,http\/1.1"}}}
 00514{"packet_event_id":2,"packet_event_name":"packet-flow","thread_id":0,"packet_id":23,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":5,"flow_packet_id":3,"flow_src_last_pkt_time":1655734524347317,"flow_dst_last_pkt_time":1655734524346950,"flow_idle_time":3285032704,"pkt_oversize":false,"pkt_caplen":54,"pkt_type":2048,"pkt_l3_offset":14,"pkt_l4_offset":34,"pkt_len":54,"pkt_l4_len":20,"thread_ts_usec":1655734524347317,"pkt":"ABoRAAACABoRAAABCABFAAAoHIlAAEAGOQUKCAABaBFzKLA6AbvglrsCH2lE\/1AQ\/\/8YmwAA"}
 01060{"flow_event_id":7,"flow_event_name":"detected","thread_id":0,"packet_id":24,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":5,"flow_state":"info","flow_src_packets_processed":3,"flow_dst_packets_processed":1,"flow_first_seen":1655734524346049,"flow_src_last_pkt_time":1655734524347416,"flow_dst_last_pkt_time":1655734524346950,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":517,"flow_dst_max_l4_payload_len":0,"flow_src_tot_l4_payload_len":517,"flow_dst_tot_l4_payload_len":0,"midstream":0,"thread_ts_usec":1655734524347416,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.115.40","src_port":45114,"dst_port":443,"l4_proto":"tcp","ndpi": {"confidence": {"6":"DPI"},"proto":"TLS.TunnelBear","proto_id":"91.299","encrypted":1,"breed":"Acceptable","category_id":2,"category":"VPN","hostname":"api.polargrizzly.com","tls": {"version":"TLSv1.2","ja3":"e9ec38c2b40ff3e300e9975dd7619902","ja3s":"","unsafe_cipher":0,"cipher":"TLS_NULL_WITH_NULL_NULL","alpn":"h2,http\/1.1"}}}
-01528{"flow_event_id":8,"flow_event_name":"detection-update","thread_id":0,"packet_id":26,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":2,"flow_state":"info","flow_src_packets_processed":3,"flow_dst_packets_processed":3,"flow_first_seen":1655734524335198,"flow_src_last_pkt_time":1655734524345975,"flow_dst_last_pkt_time":1655734524417182,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":517,"flow_dst_max_l4_payload_len":3657,"flow_src_tot_l4_payload_len":517,"flow_dst_tot_l4_payload_len":3657,"midstream":0,"thread_ts_usec":1655734524417182,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.115.40","src_port":45104,"dst_port":443,"l4_proto":"tcp","ndpi": {"flow_risk": {"9": {"risk":"TLS Cert Expired","severity":"High","risk_score": {"total":260,"client":230,"server":30}}},"confidence": {"6":"DPI"},"proto":"TLS.TunnelBear","proto_id":"91.299","encrypted":1,"breed":"Acceptable","category_id":2,"category":"VPN","hostname":"api.polargrizzly.com","tls": {"version":"TLSv1.2","server_names":"*.polargrizzly.com,polargrizzly.com","ja3":"e9ec38c2b40ff3e300e9975dd7619902","ja3s":"9ebc57def2efb523f25c77af13aa6d48","unsafe_cipher":0,"cipher":"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256","issuerDN":"C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo ECC Domain Validation Secure Server CA","subjectDN":"CN=*.polargrizzly.com","alpn":"h2,http\/1.1","fingerprint":"1D:D9:82:8B:E8:9A:66:86:18:67:66:52:EE:02:6C:7D:09:12:B4:17"}}}
-01519{"flow_event_id":8,"flow_event_name":"detection-update","thread_id":0,"packet_id":27,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":1,"flow_state":"info","flow_src_packets_processed":3,"flow_dst_packets_processed":3,"flow_first_seen":1655734524312623,"flow_src_last_pkt_time":1655734524320000,"flow_dst_last_pkt_time":1655734524417598,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":517,"flow_dst_max_l4_payload_len":5473,"flow_src_tot_l4_payload_len":517,"flow_dst_tot_l4_payload_len":5473,"midstream":0,"thread_ts_usec":1655734524417598,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.154.236","src_port":50178,"dst_port":443,"l4_proto":"tcp","ndpi": {"flow_risk": {"9": {"risk":"TLS Cert Expired","severity":"High","risk_score": {"total":260,"client":230,"server":30}}},"confidence": {"6":"DPI"},"proto":"TLS.TunnelBear","proto_id":"91.299","encrypted":1,"breed":"Acceptable","category_id":2,"category":"VPN","hostname":"api.tunnelbear.com","tls": {"version":"TLSv1.2","server_names":"*.tunnelbear.com,tunnelbear.com","ja3":"a1c672bda2bda1a05bdca801144b2760","ja3s":"a885fb01204bc11cc58efc02fe640899","unsafe_cipher":0,"cipher":"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256","issuerDN":"C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA","subjectDN":"CN=*.tunnelbear.com","alpn":"h2,http\/1.1","fingerprint":"52:96:E2:83:CC:15:4E:B3:0F:5B:1D:E2:E8:FF:4E:A9:C4:E9:C0:AF"}}}
-01528{"flow_event_id":8,"flow_event_name":"detection-update","thread_id":0,"packet_id":35,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":3,"flow_state":"info","flow_src_packets_processed":3,"flow_dst_packets_processed":3,"flow_first_seen":1655734524340111,"flow_src_last_pkt_time":1655734524347041,"flow_dst_last_pkt_time":1655734524479120,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":517,"flow_dst_max_l4_payload_len":3657,"flow_src_tot_l4_payload_len":517,"flow_dst_tot_l4_payload_len":3657,"midstream":0,"thread_ts_usec":1655734524479120,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.115.40","src_port":45106,"dst_port":443,"l4_proto":"tcp","ndpi": {"flow_risk": {"9": {"risk":"TLS Cert Expired","severity":"High","risk_score": {"total":260,"client":230,"server":30}}},"confidence": {"6":"DPI"},"proto":"TLS.TunnelBear","proto_id":"91.299","encrypted":1,"breed":"Acceptable","category_id":2,"category":"VPN","hostname":"api.polargrizzly.com","tls": {"version":"TLSv1.2","server_names":"*.polargrizzly.com,polargrizzly.com","ja3":"e9ec38c2b40ff3e300e9975dd7619902","ja3s":"9ebc57def2efb523f25c77af13aa6d48","unsafe_cipher":0,"cipher":"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256","issuerDN":"C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo ECC Domain Validation Secure Server CA","subjectDN":"CN=*.polargrizzly.com","alpn":"h2,http\/1.1","fingerprint":"1D:D9:82:8B:E8:9A:66:86:18:67:66:52:EE:02:6C:7D:09:12:B4:17"}}}
-01528{"flow_event_id":8,"flow_event_name":"detection-update","thread_id":0,"packet_id":36,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":4,"flow_state":"info","flow_src_packets_processed":3,"flow_dst_packets_processed":3,"flow_first_seen":1655734524343748,"flow_src_last_pkt_time":1655734524347219,"flow_dst_last_pkt_time":1655734524479396,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":517,"flow_dst_max_l4_payload_len":3655,"flow_src_tot_l4_payload_len":517,"flow_dst_tot_l4_payload_len":3655,"midstream":0,"thread_ts_usec":1655734524479396,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.115.40","src_port":45108,"dst_port":443,"l4_proto":"tcp","ndpi": {"flow_risk": {"9": {"risk":"TLS Cert Expired","severity":"High","risk_score": {"total":260,"client":230,"server":30}}},"confidence": {"6":"DPI"},"proto":"TLS.TunnelBear","proto_id":"91.299","encrypted":1,"breed":"Acceptable","category_id":2,"category":"VPN","hostname":"api.polargrizzly.com","tls": {"version":"TLSv1.2","server_names":"*.polargrizzly.com,polargrizzly.com","ja3":"e9ec38c2b40ff3e300e9975dd7619902","ja3s":"9ebc57def2efb523f25c77af13aa6d48","unsafe_cipher":0,"cipher":"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256","issuerDN":"C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo ECC Domain Validation Secure Server CA","subjectDN":"CN=*.polargrizzly.com","alpn":"h2,http\/1.1","fingerprint":"1D:D9:82:8B:E8:9A:66:86:18:67:66:52:EE:02:6C:7D:09:12:B4:17"}}}
-01528{"flow_event_id":8,"flow_event_name":"detection-update","thread_id":0,"packet_id":37,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":5,"flow_state":"info","flow_src_packets_processed":3,"flow_dst_packets_processed":3,"flow_first_seen":1655734524346049,"flow_src_last_pkt_time":1655734524347416,"flow_dst_last_pkt_time":1655734524479592,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":517,"flow_dst_max_l4_payload_len":3658,"flow_src_tot_l4_payload_len":517,"flow_dst_tot_l4_payload_len":3658,"midstream":0,"thread_ts_usec":1655734524479592,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.115.40","src_port":45114,"dst_port":443,"l4_proto":"tcp","ndpi": {"flow_risk": {"9": {"risk":"TLS Cert Expired","severity":"High","risk_score": {"total":260,"client":230,"server":30}}},"confidence": {"6":"DPI"},"proto":"TLS.TunnelBear","proto_id":"91.299","encrypted":1,"breed":"Acceptable","category_id":2,"category":"VPN","hostname":"api.polargrizzly.com","tls": {"version":"TLSv1.2","server_names":"*.polargrizzly.com,polargrizzly.com","ja3":"e9ec38c2b40ff3e300e9975dd7619902","ja3s":"9ebc57def2efb523f25c77af13aa6d48","unsafe_cipher":0,"cipher":"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256","issuerDN":"C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo ECC Domain Validation Secure Server CA","subjectDN":"CN=*.polargrizzly.com","alpn":"h2,http\/1.1","fingerprint":"1D:D9:82:8B:E8:9A:66:86:18:67:66:52:EE:02:6C:7D:09:12:B4:17"}}}
+01409{"flow_event_id":8,"flow_event_name":"detection-update","thread_id":0,"packet_id":26,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":2,"flow_state":"info","flow_src_packets_processed":3,"flow_dst_packets_processed":3,"flow_first_seen":1655734524335198,"flow_src_last_pkt_time":1655734524345975,"flow_dst_last_pkt_time":1655734524417182,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":517,"flow_dst_max_l4_payload_len":3657,"flow_src_tot_l4_payload_len":517,"flow_dst_tot_l4_payload_len":3657,"midstream":0,"thread_ts_usec":1655734524417182,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.115.40","src_port":45104,"dst_port":443,"l4_proto":"tcp","ndpi": {"confidence": {"6":"DPI"},"proto":"TLS.TunnelBear","proto_id":"91.299","encrypted":1,"breed":"Acceptable","category_id":2,"category":"VPN","hostname":"api.polargrizzly.com","tls": {"version":"TLSv1.2","server_names":"*.polargrizzly.com,polargrizzly.com","ja3":"e9ec38c2b40ff3e300e9975dd7619902","ja3s":"9ebc57def2efb523f25c77af13aa6d48","unsafe_cipher":0,"cipher":"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256","issuerDN":"C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo ECC Domain Validation Secure Server CA","subjectDN":"CN=*.polargrizzly.com","alpn":"h2,http\/1.1","fingerprint":"1D:D9:82:8B:E8:9A:66:86:18:67:66:52:EE:02:6C:7D:09:12:B4:17"}}}
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@@ -71,13 +71,13 @@
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@@ -124,8 +124,8 @@
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@@ -141,7 +141,7 @@
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 00768{"flow_event_id":3,"flow_event_name":"idle","thread_id":0,"packet_id":421,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":12,"flow_state":"info","flow_src_packets_processed":11,"flow_dst_packets_processed":13,"flow_first_seen":1655734759670358,"flow_src_last_pkt_time":1655734762085906,"flow_dst_last_pkt_time":1655734762035602,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":536,"flow_dst_max_l4_payload_len":4026,"flow_src_tot_l4_payload_len":1421,"flow_dst_tot_l4_payload_len":6373,"midstream":0,"thread_ts_usec":1655734778245353,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"99.83.135.170","src_port":47594,"dst_port":443,"l4_proto":"tcp","flow_datalink":1,"flow_max_packets":3}
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 00915{"flow_event_id":2,"flow_event_name":"end","thread_id":0,"packet_id":421,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":16,"flow_state":"finished","flow_src_packets_processed":8,"flow_dst_packets_processed":7,"flow_first_seen":1655734776516959,"flow_src_last_pkt_time":1655734776970401,"flow_dst_last_pkt_time":1655734776962883,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":517,"flow_dst_max_l4_payload_len":156,"flow_src_tot_l4_payload_len":738,"flow_dst_tot_l4_payload_len":225,"midstream":0,"thread_ts_usec":1655734778245353,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.114.40","src_port":33838,"dst_port":443,"l4_proto":"tcp","flow_datalink":1,"flow_max_packets":3,"ndpi": {"confidence": {"6":"DPI"},"proto":"TLS.TunnelBear","proto_id":"91.299","encrypted":1,"breed":"Acceptable","category_id":2,"category":"VPN"}}
 00915{"flow_event_id":2,"flow_event_name":"end","thread_id":0,"packet_id":421,"source":"tunnelbear.pcap","alias":"nDPId-test","flow_id":17,"flow_state":"finished","flow_src_packets_processed":8,"flow_dst_packets_processed":7,"flow_first_seen":1655734776520455,"flow_src_last_pkt_time":1655734776969874,"flow_dst_last_pkt_time":1655734776962409,"flow_idle_time":3285032704,"flow_src_min_l4_payload_len":0,"flow_dst_min_l4_payload_len":0,"flow_src_max_l4_payload_len":517,"flow_dst_max_l4_payload_len":156,"flow_src_tot_l4_payload_len":738,"flow_dst_tot_l4_payload_len":225,"midstream":0,"thread_ts_usec":1655734778245353,"l3_proto":"ip4","src_ip":"10.8.0.1","dst_ip":"104.17.114.40","src_port":33842,"dst_port":443,"l4_proto":"tcp","flow_datalink":1,"flow_max_packets":3,"ndpi": {"confidence": {"6":"DPI"},"proto":"TLS.TunnelBear","proto_id":"91.299","encrypted":1,"breed":"Acceptable","category_id":2,"category":"VPN"}}
@@ -157,10 +157,10 @@
 ~~ total active/idle flows...: 21/21
 ~~ total timeout flows.......: 0
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-~~ total memory allocated....: 6211623 bytes
-~~ total memory freed........: 6211623 bytes
-~~ total allocations/frees...: 122265/122265
+~~ total memory allocated....: 6211227 bytes
+~~ total memory freed........: 6211227 bytes
+~~ total allocations/frees...: 122256/122256
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-~~ json string min len.......: 481 chars
-~~ json string max len.......: 1699 chars
-~~ json string avg len.......: 1090 chars
+~~ json string min len.......: 495 chars
+~~ json string max len.......: 1580 chars
+~~ json string avg len.......: 1037 chars