I just pulled down a fresh copy of master, did nothing special: autoreconf -i ./configure --prefix=/tmp/ats make -j12 && make install
/tmp/ats/bin/traffic_server ab -n 10000000 -c 1000 http://127.0.0.1:8080/ I made no changes to any config files other to to enable the memory debug output every 30 seconds to see where it was going. And the memory stats are below, but basically it looks like Http1 client session allocators are leaking pretty badly, I didn't have a chance to dig into it but I wanted to mention it: Allocated | In-Use | Type Size | Free List Name --------------------|--------------------|------------|---------------------------------- 0 | 0 | 2097152 | memory/ioBufAllocator[14] 0 | 0 | 1048576 | memory/ioBufAllocator[13] 0 | 0 | 524288 | memory/ioBufAllocator[12] 0 | 0 | 262144 | memory/ioBufAllocator[11] 0 | 0 | 131072 | memory/ioBufAllocator[10] 0 | 0 | 65536 | memory/ioBufAllocator[9] 0 | 0 | 32768 | memory/ioBufAllocator[8] 0 | 0 | 16384 | memory/ioBufAllocator[7] 5242880 | 0 | 8192 | memory/ioBufAllocator[6] 9093251072 | 9091760128 | 4096 | memory/ioBufAllocator[5] 0 | 0 | 2048 | memory/ioBufAllocator[4] 0 | 0 | 1024 | memory/ioBufAllocator[3] 0 | 0 | 512 | memory/ioBufAllocator[2] 0 | 0 | 256 | memory/ioBufAllocator[1] 0 | 0 | 128 | memory/ioBufAllocator[0] 49152 | 3456 | 96 | memory/eventAllocator 177639120 | 177610240 | 80 | memory/mutexAllocator 142082048 | 142078912 | 64 | memory/ioBlockAllocator 106561440 | 106559184 | 48 | memory/ioDataAllocator 532815360 | 532792800 | 240 | memory/ioAllocator 0 | 0 | 448 | memory/socksAllocator 0 | 0 | 144 | memory/udpReadContAllocator 0 | 0 | 160 | memory/udpPacketAllocator 917504 | 0 | 896 | memory/netVCAllocator 0 | 0 | 128 | memory/UDPIOEventAllocator 0 | 0 | 1072 | memory/sslNetVCAllocator 0 | 0 | 64 | memory/RamCacheLRUEntry 0 | 0 | 96 | memory/RamCacheCLFUSEntry 0 | 0 | 160 | memory/openDirEntry 0 | 0 | 48 | memory/evacuationKey 0 | 0 | 64 | memory/cacheRemoveCont 0 | 0 | 96 | memory/evacuationBlock 0 | 0 | 960 | memory/cacheVConnection 0 | 0 | 16 | memory/DNSRequestDataAllocator 0 | 0 | 29584 | memory/dnsBufAllocator 0 | 0 | 1296 | memory/dnsEntryAllocator 0 | 0 | 16 | memory/expiryQueueEntry 0 | 0 | 64 | memory/refCountCacheHashingValueAllocator 0 | 0 | 112 | memory/hostDBFileContAllocator 296960 | 2320 | 2320 | memory/hostDBContAllocator 0 | 0 | 128 | memory/OneWayTunnelAllocator 3407872 | 3096576 | 2048 | memory/hdrStrHeap 3670016 | 3096576 | 2048 | memory/hdrHeap 0 | 0 | 256 | memory/httpCacheAltAllocator 0 | 0 | 3392 | memory/http2ClientSessionAllocator 0 | 0 | 3120 | memory/http2StreamAllocator 0 | 0 | 144 | memory/RemapPluginsAlloc 0 | 0 | 208 | memory/http1ServerSessionAllocator 13885440 | 0 | 9040 | memory/httpSMAllocator 2308491120 | 2308454720 | 1040 | memory/http1ClientSessionAllocator 0 | 0 | 144 | memory/socksProxyAllocator 0 | 0 | 32 | memory/MIMEFieldSDKHandle 0 | 0 | 288 | memory/INKVConnAllocator 0 | 0 | 144 | memory/INKContAllocator 0 | 0 | 32 | memory/apiHookAllocator 0 | 0 | 528 | memory/FetchSMAllocator 1703936 | 0 | 1024 | memory/ArenaBlock 12390013920 | 12365454912 | | TOTAL