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John Plevyak commented on TS-1006: ---------------------------------- Some of the volatile variables are not listed as such (e.g. InkThreadCache::status). Also, what is the purpose of this status field and how is it updated? It is set in ink_freelist_new to 0 via simple assignment, then tested/assigned via a cas in ink_freelist_free. Some comments, or documentation would be nice. Have you tested this against the default memory allocator and TCMalloc? This seems to be doing something similar to TCMalloc and that code has been extensively tested. > 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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