conversations - stats

{
    "ns" : "imessage.conversations",
    "count" : 26892006,
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    "avgObjSize" : 906,
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    "capped" : false,
    "wiredTiger" : {
        "metadata" : {
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        },
        "creationString" : "allocation_size=4KB,app_metadata=(formatVersion=1),block_allocation=best,block_compressor=snappy,cache_resident=0,checksum=on,colgroups=,collator=,columns=,dictionary=0,encryption=(keyid=,name=),exclusive=false,extractor=,format=btree,huffman_key=,huffman_value=,ignore_in_memory_cache_size=false,immutable=false,internal_item_max=0,internal_key_max=0,internal_key_truncate=,internal_page_max=4KB,key_format=q,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=32KB,leaf_value_max=64MB,log=(enabled=),lsm=(auto_throttle=true,bloom=true,bloom_bit_count=16,bloom_config=,bloom_hash_count=8,bloom_oldest=false,chunk_count_limit=0,chunk_max=5GB,chunk_size=10MB,merge_max=15,merge_min=0),memory_page_max=10m,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=0,prefix_compression_min=4,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,type=file,value_format=u",
        "type" : "file",
        "uri" : "statistics:table:collection-3--2472514806463499950",
        "LSM" : {
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            "bloom filters in the LSM tree" : 0,
            "chunks in the LSM tree" : 0,
            "highest merge generation in the LSM tree" : 0,
            "queries that could have benefited from a Bloom filter that did not exist" : 0,
            "sleep for LSM checkpoint throttle" : 0,
            "sleep for LSM merge throttle" : 0,
            "total size of bloom filters" : 0
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        "block-manager" : {
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            "blocks allocated" : 0,
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        "btree" : {
            "btree checkpoint generation" : 13,
            "column-store fixed-size leaf pages" : 0,
            "column-store internal pages" : 0,
            "column-store variable-size RLE encoded values" : 0,
            "column-store variable-size deleted values" : 0,
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            "fixed-record size" : 0,
            "maximum internal page key size" : 368,
            "maximum internal page size" : 4096,
            "maximum leaf page key size" : 2867,
            "maximum leaf page size" : 32768,
            "maximum leaf page value size" : 67108864,
            "maximum tree depth" : 5,
            "number of key/value pairs" : 0,
            "overflow pages" : 0,
            "pages rewritten by compaction" : 0,
            "row-store internal pages" : 0,
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        "cache" : {
            "bytes currently in the cache" : 14628111609.0,
            "bytes read into cache" : 41459670135.0,
            "bytes written from cache" : 0,
            "checkpoint blocked page eviction" : 0,
            "data source pages selected for eviction unable to be evicted" : 1697,
            "hazard pointer blocked page eviction" : 812,
            "in-memory page passed criteria to be split" : 0,
            "in-memory page splits" : 0,
            "internal pages evicted" : 4038,
            "internal pages split during eviction" : 0,
            "leaf pages split during eviction" : 0,
            "modified pages evicted" : 0,
            "overflow pages read into cache" : 0,
            "overflow values cached in memory" : 0,
            "page split during eviction deepened the tree" : 0,
            "page written requiring lookaside records" : 0,
            "pages read into cache" : 1591493,
            "pages read into cache requiring lookaside entries" : 0,
            "pages requested from the cache" : 4898785,
            "pages written from cache" : 0,
            "pages written requiring in-memory restoration" : 0,
            "unmodified pages evicted" : 1079189
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        "cache_walk" : {
            "Average difference between current eviction generation when the page was last considered" : 0,
            "Average on-disk page image size seen" : 0,
            "Clean pages currently in cache" : 0,
            "Current eviction generation" : 0,
            "Dirty pages currently in cache" : 0,
            "Entries in the root page" : 0,
            "Internal pages currently in cache" : 0,
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            "Maximum difference between current eviction generation when the page was last considered" : 0,
            "Maximum page size seen" : 0,
            "Minimum on-disk page image size seen" : 0,
            "On-disk page image sizes smaller than a single allocation unit" : 0,
            "Pages created in memory and never written" : 0,
            "Pages currently queued for eviction" : 0,
            "Pages that could not be queued for eviction" : 0,
            "Refs skipped during cache traversal" : 0,
            "Size of the root page" : 0,
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        },
        "compression" : {
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            "page written failed to compress" : 0,
            "page written was too small to compress" : 0,
            "raw compression call failed, additional data available" : 0,
            "raw compression call failed, no additional data available" : 0,
            "raw compression call succeeded" : 0
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        "cursor" : {
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            "create calls" : 7,
            "cursor-insert key and value bytes inserted" : 0,
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            "cursor-update value bytes updated" : 0,
            "insert calls" : 0,
            "next calls" : 75369124,
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            "reset calls" : 689352,
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            "search calls" : 1762,
            "search near calls" : 688740,
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        },
        "reconciliation" : {
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            "fast-path pages deleted" : 0,
            "internal page key bytes discarded using suffix compression" : 0,
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            "internal-page overflow keys" : 0,
            "leaf page key bytes discarded using prefix compression" : 0,
            "leaf page multi-block writes" : 0,
            "leaf-page overflow keys" : 0,
            "maximum blocks required for a page" : 0,
            "overflow values written" : 0,
            "page checksum matches" : 0,
            "page reconciliation calls" : 0,
            "page reconciliation calls for eviction" : 0,
            "pages deleted" : 0
        },
        "session" : {
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            "open cursor count" : 3
        },
        "transaction" : {
            "update conflicts" : 0
        }
    },
    "nindexes" : 2,
    "totalIndexSize" : 727384064,
    "indexSizes" : {
        "_id_" : 416780288,
        "users_1" : 310603776
    },
    "ok" : 1.0
}