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John Plevyak commented on TS-1006: ---------------------------------- I agree. We should land this initially as a compile time option in the dev branch to get wider production time on it before moving it to default. The main reason is that it is invasive and complicated, particularly in the way it will interact with the VM system and it would be nice to see how it responds in a variety of environments. If it is much better than TCMalloc, then perhaps we should package it up in a more general form as well. Was the design based on another allocator/paper? Any references? john > memory management, cut down memory waste ? > ------------------------------------------ > > Key: TS-1006 > URL: https://issues.apache.org/jira/browse/TS-1006 > Project: Traffic Server > Issue Type: Improvement > Components: Core > Affects Versions: 3.1.1 > Reporter: Zhao Yongming > Assignee: Bin Chen > Fix For: 3.3.2 > > Attachments: 0001-Allocator-optimize-InkFreeList-memory-pool.patch, > 0002-Allocator-make-InkFreeList-memory-pool-configurable.patch, > Memory-Usage-After-Introduced-New-Allocator.png, memusage.ods, memusage.ods > > > when we review the memory usage in the production, there is something > abnormal, ie, looks like TS take much memory than index data + common system > waste, and here is some memory dump result by set > "proxy.config.dump_mem_info_frequency" > 1, the one on a not so busy forwarding system: > physics memory: 32G > RAM cache: 22G > DISK: 6140 GB > average_object_size 64000 > {code} > allocated | in-use | type size | free list name > --------------------|--------------------|------------|---------------------------------- > 671088640 | 37748736 | 2097152 | > memory/ioBufAllocator[14] > 2248146944 | 2135949312 | 1048576 | > memory/ioBufAllocator[13] > 1711276032 | 1705508864 | 524288 | > memory/ioBufAllocator[12] > 1669332992 | 1667760128 | 262144 | > memory/ioBufAllocator[11] > 2214592512 | 2211840000 | 131072 | > memory/ioBufAllocator[10] > 2325741568 | 2323775488 | 65536 | > memory/ioBufAllocator[9] > 2091909120 | 2089123840 | 32768 | > memory/ioBufAllocator[8] > 1956642816 | 1956478976 | 16384 | > memory/ioBufAllocator[7] > 2094530560 | 2094071808 | 8192 | > memory/ioBufAllocator[6] > 356515840 | 355540992 | 4096 | > memory/ioBufAllocator[5] > 1048576 | 14336 | 2048 | > memory/ioBufAllocator[4] > 131072 | 0 | 1024 | > memory/ioBufAllocator[3] > 65536 | 0 | 512 | > memory/ioBufAllocator[2] > 32768 | 0 | 256 | > memory/ioBufAllocator[1] > 16384 | 0 | 128 | > memory/ioBufAllocator[0] > 0 | 0 | 576 | > memory/ICPRequestCont_allocator > 0 | 0 | 112 | > memory/ICPPeerReadContAllocator > 0 | 0 | 432 | > memory/PeerReadDataAllocator > 0 | 0 | 32 | > memory/MIMEFieldSDKHandle > 0 | 0 | 240 | > memory/INKVConnAllocator > 0 | 0 | 96 | > memory/INKContAllocator > 4096 | 0 | 32 | > memory/apiHookAllocator > 0 | 0 | 288 | > memory/FetchSMAllocator > 0 | 0 | 80 | > memory/prefetchLockHandlerAllocator > 0 | 0 | 176 | > memory/PrefetchBlasterAllocator > 0 | 0 | 80 | > memory/prefetchUrlBlaster > 0 | 0 | 96 | memory/blasterUrlList > 0 | 0 | 96 | > memory/prefetchUrlEntryAllocator > 0 | 0 | 128 | > memory/socksProxyAllocator > 0 | 0 | 144 | > memory/ObjectReloadCont > 3258368 | 576016 | 592 | > memory/httpClientSessionAllocator > 825344 | 139568 | 208 | > memory/httpServerSessionAllocator > 22597632 | 1284848 | 9808 | memory/httpSMAllocator > 0 | 0 | 32 | > memory/CacheLookupHttpConfigAllocator > 0 | 0 | 9856 | > memory/httpUpdateSMAllocator > 0 | 0 | 128 | > memory/RemapPluginsAlloc > 0 | 0 | 48 | > memory/CongestRequestParamAllocator > 0 | 0 | 128 | > memory/CongestionDBContAllocator > 5767168 | 704512 | 2048 | memory/hdrStrHeap > 18350080 | 1153024 | 2048 | memory/hdrHeap > 53248 | 2912 | 208 | > memory/httpCacheAltAllocator > 0 | 0 | 112 | > memory/OneWayTunnelAllocator > 157696 | 1232 | 1232 | > memory/hostDBContAllocator > 102240 | 17040 | 17040 | memory/dnsBufAllocator > 323584 | 0 | 1264 | > memory/dnsEntryAllocator > 0 | 0 | 16 | > memory/DNSRequestDataAllocator > 0 | 0 | 1072 | memory/SRVAllocator > 0 | 0 | 48 | > memory/ClusterVConnectionCache::Entry > 0 | 0 | 560 | > memory/cacheContAllocator > 0 | 0 | 112 | > memory/inControlAllocator > 0 | 0 | 112 | > memory/outControlAllocator > 0 | 0 | 32 | > memory/byteBankAllocator > 0 | 0 | 576 | > memory/clusterVCAllocator > 0 | 0 | 48 | memory/evacuationKey > 6144 | 0 | 48 | memory/cacheRemoveCont > 270336 | 262560 | 96 | memory/evacuationBlock > 4997120 | 3968416 | 976 | > memory/cacheVConnection > 798720 | 522080 | 160 | memory/openDirEntry > 0 | 0 | 64 | > memory/RamCacheLRUEntry > 56426496 | 56426304 | 96 | > memory/RamCacheCLFUSEntry > 9584640 | 6168000 | 960 | memory/netVCAllocator > 0 | 0 | 128 | > memory/udpReadContAllocator > 0 | 0 | 128 | > memory/udpWorkContinuationAllocator > 0 | 0 | 160 | > memory/udpPacketAllocator > 0 | 0 | 304 | memory/socksAllocator > 139264 | 68544 | 1088 | > memory/sslNetVCAllocator > 0 | 0 | 128 | > memory/UDPIOEventAllocator > 671744 | 115520 | 64 | > memory/ioBlockAllocator > 28305408 | 28301520 | 48 | memory/ioDataAllocator > 2273280 | 406320 | 240 | memory/ioAllocator > 1904640 | 1489920 | 80 | memory/mutexAllocator > 1105920 | 188544 | 96 | memory/eventAllocator > 2359296 | 129024 | 1024 | memory/ArenaBlock > {code} > this box will crash every 2days, so the memory waste may no that high > 2, our production reverse system: > physics memory: 16G > RAM cache: 8G > DISK: 1516 GB > average_object_size 16384 > and it run for a much long time: > {code} > allocated | in-use | type size | free list name > --------------------|--------------------|------------|---------------------------------- > 805306368 | 0 | 2097152 | > memory/ioBufAllocator[14] > 738197504 | 8388608 | 1048576 | > memory/ioBufAllocator[13] > 1258291200 | 46661632 | 524288 | > memory/ioBufAllocator[12] > 1300234240 | 183762944 | 262144 | > memory/ioBufAllocator[11] > 1170210816 | 466223104 | 131072 | > memory/ioBufAllocator[10] > 1790967808 | 1223426048 | 65536 | > memory/ioBufAllocator[9] > 2970615808 | 2601418752 | 32768 | > memory/ioBufAllocator[8] > 2067791872 | 2044608512 | 16384 | > memory/ioBufAllocator[7] > 1169424384 | 1169121280 | 8192 | > memory/ioBufAllocator[6] > 711458816 | 710463488 | 4096 | > memory/ioBufAllocator[5] > 1572864 | 0 | 2048 | > memory/ioBufAllocator[4] > 131072 | 0 | 1024 | > memory/ioBufAllocator[3] > 65536 | 0 | 512 | > memory/ioBufAllocator[2] > 32768 | 0 | 256 | > memory/ioBufAllocator[1] > 16384 | 0 | 128 | > memory/ioBufAllocator[0] > 0 | 0 | 576 | > memory/ICPRequestCont_allocator > 0 | 0 | 112 | > memory/ICPPeerReadContAllocator > 0 | 0 | 432 | > memory/PeerReadDataAllocator > 0 | 0 | 32 | > memory/MIMEFieldSDKHandle > 0 | 0 | 240 | > memory/INKVConnAllocator > 0 | 0 | 96 | > memory/INKContAllocator > 4096 | 0 | 32 | > memory/apiHookAllocator > 0 | 0 | 288 | > memory/FetchSMAllocator > 0 | 0 | 80 | > memory/prefetchLockHandlerAllocator > 0 | 0 | 176 | > memory/PrefetchBlasterAllocator > 0 | 0 | 80 | > memory/prefetchUrlBlaster > 0 | 0 | 96 | memory/blasterUrlList > 0 | 0 | 96 | > memory/prefetchUrlEntryAllocator > 0 | 0 | 128 | > memory/socksProxyAllocator > 0 | 0 | 144 | > memory/ObjectReloadCont > 1136640 | 125504 | 592 | > memory/httpClientSessionAllocator > 372736 | 27248 | 208 | > memory/httpServerSessionAllocator > 11317248 | 39296 | 9824 | memory/httpSMAllocator > 0 | 0 | 32 | > memory/CacheLookupHttpConfigAllocator > 0 | 0 | 9888 | > memory/httpUpdateSMAllocator > 0 | 0 | 128 | > memory/RemapPluginsAlloc > 0 | 0 | 512 | memory/HCSMAllocator > 0 | 0 | 48 | > memory/VCEntryAllocator > 0 | 0 | 96 | > memory/HCEntryAllocator > 0 | 0 | 64 | > memory/HCHandlerAllocator > 0 | 0 | 48 | > memory/CongestRequestParamAllocator > 0 | 0 | 128 | > memory/CongestionDBContAllocator > 6029312 | 643072 | 2048 | memory/hdrStrHeap > 7077888 | 657408 | 2048 | memory/hdrHeap > 26624 | 208 | 208 | > memory/httpCacheAltAllocator > 0 | 0 | 112 | > memory/OneWayTunnelAllocator > 630784 | 1232 | 1232 | > memory/hostDBContAllocator > 238560 | 17040 | 17040 | memory/dnsBufAllocator > 161792 | 0 | 1264 | > memory/dnsEntryAllocator > 0 | 0 | 16 | > memory/DNSRequestDataAllocator > 0 | 0 | 1072 | memory/SRVAllocator > 0 | 0 | 48 | > memory/ClusterVConnectionCache::Entry > 0 | 0 | 560 | > memory/cacheContAllocator > 0 | 0 | 112 | > memory/inControlAllocator > 0 | 0 | 112 | > memory/outControlAllocator > 0 | 0 | 32 | > memory/byteBankAllocator > 0 | 0 | 576 | > memory/clusterVCAllocator > 0 | 0 | 48 | memory/evacuationKey > 6144 | 0 | 48 | memory/cacheRemoveCont > 17006592 | 14972928 | 96 | memory/evacuationBlock > 1777664 | 759872 | 992 | > memory/cacheVConnection > 307200 | 111520 | 160 | memory/openDirEntry > 0 | 0 | 64 | > memory/RamCacheLRUEntry > 104275968 | 104274048 | 96 | > memory/RamCacheCLFUSEntry > 3440640 | 1819200 | 960 | memory/netVCAllocator > 0 | 0 | 128 | > memory/udpReadContAllocator > 0 | 0 | 128 | > memory/udpWorkContinuationAllocator > 0 | 0 | 160 | > memory/udpPacketAllocator > 0 | 0 | 304 | memory/socksAllocator > 0 | 0 | 1088 | > memory/sslNetVCAllocator > 0 | 0 | 128 | > memory/UDPIOEventAllocator > 237568 | 22528 | 64 | > memory/ioBlockAllocator > 26087424 | 26081904 | 48 | memory/ioDataAllocator > 890880 | 84240 | 240 | memory/ioAllocator > 1525760 | 1403440 | 80 | memory/mutexAllocator > 565248 | 129696 | 96 | memory/eventAllocator > 1179648 | 4096 | 1024 | memory/ArenaBlock > {code} > our team is working on the memory free issue, trying to improve the memory > management. and this a big project, the more input|comment the better. -- This message is automatically generated by JIRA. 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