Flat profile:

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total
 time   seconds   seconds    calls  ms/call  ms/call  name
 93.75      0.15     0.15     2948     0.05     0.05  LZ4_decompress_fast
  6.25      0.16     0.01    26068     0.00     0.01  sqlite3VdbeCursorMoveto
  0.00      0.16     0.00    54088     0.00     0.00  sqlite3GetVarint
  0.00      0.16     0.00    28459     0.00     0.00  sqlite3VdbeSerialGet
  0.00      0.16     0.00    23708     0.00     0.00  sqlite3VdbeMemNulTerminate
  0.00      0.16     0.00    23699     0.00     0.00  sqlite3_transfer_bindings
  0.00      0.16     0.00    11910     0.00     0.00  sqlite3DbMallocSize
  0.00      0.16     0.00    11883     0.00     0.00  sqlite3VdbeMemGrow
  0.00      0.16     0.00    11851     0.00     0.00  sqlite3VdbeMemMakeWriteable
  0.00      0.16     0.00     9480     0.00     0.00  fetchPayload
  0.00      0.16     0.00     9478     0.00     0.00  sqlite3VdbeMemRelease
  0.00      0.16     0.00     7170     0.00     0.02  btreeGetPage
  0.00      0.16     0.00     7170     0.00     0.00  pcache1Fetch
  0.00      0.16     0.00     7170     0.00     0.00  releasePage
  0.00      0.16     0.00     7170     0.00     0.02  sqlite3PagerAcquire
  0.00      0.16     0.00     7170     0.00     0.00  sqlite3PagerUnrefNotNull
  0.00      0.16     0.00     7170     0.00     0.00  sqlite3PcacheFetch
  0.00      0.16     0.00     7170     0.00     0.00  sqlite3PcacheRelease
  0.00      0.16     0.00     7169     0.00     0.00  pcache1Unpin
  0.00      0.16     0.00     7169     0.00     0.00  pcacheUnpin
  0.00      0.16     0.00     7168     0.00     0.02  getAndInitPage
  0.00      0.16     0.00     7165     0.00     0.02  moveToChild

granularity: each sample hit covers 2 byte(s) for 6.25% of 0.16 seconds

index % time    self  children    called     name
                                                 <spontaneous>
[1]    100.0    0.00    0.16                 main [1]
                0.00    0.16       1/1           sqlite3_exec <cycle 1> [5]
                0.00    0.00       1/1           openDatabase [18]
                0.00    0.00       2/3           sqlite3_vfs_find [249]
                0.00    0.00       1/1           sqlite3_crodvfs [358]
                0.00    0.00       1/14          sqlite3_vfs_register <cycle 5> [204]
                0.00    0.00       1/1           sqlite3_open_v2 [359]
-----------------------------------------------
[2]     99.9    0.00    0.16       1+198     <cycle 1 as a whole> [2]
                0.00    0.16       2             sqlite3_exec <cycle 1> [5]
                0.00    0.00       2             sqlite3InitOne <cycle 1> [27]
                0.00    0.00     124             sqlite3Parser <cycle 1> [82]
                0.00    0.00       6+4           sqlite3WalkSelect <cycle 1> [186]
                0.00    0.00       9             sqlite3ReadSchema <cycle 1> [149]
                0.00    0.00       7             sqlite3LockAndPrepare <cycle 1> [168]
                0.00    0.00       7             sqlite3Prepare <cycle 1> [171]
                0.00    0.00       7             sqlite3RunParser <cycle 1> [172]
                0.00    0.00       5             sqlite3InitCallback <cycle 1> [196]
                0.00    0.00       5             sqlite3_prepare <cycle 1> [203]
                0.00    0.00       5             sqlite3SelectPrep <cycle 1> [198]
                0.00    0.00       4             sqlite3LocateTable <cycle 1> [213]
                0.00    0.00       3             sqlite3StartTable <cycle 1> [243]
                0.00    0.00       2             selectExpander <cycle 1> [277]
                0.00    0.00       2             sqlite3Select <cycle 1> [299]
                0.00    0.00       2             sqlite3CreateIndex <cycle 1> [282]
                0.00    0.00       2             sqlite3_prepare_v2 <cycle 1> [312]
                0.00    0.00       2             resolveSelectStep <cycle 1> [275]
                0.00    0.00       2             resolveOrderGroupBy <cycle 1> [274]
                0.00    0.00       1             sqlite3Init <cycle 1> [347]
-----------------------------------------------
                0.00    0.16    2374/2374        sqlite3_step [4]
[3]     99.9    0.00    0.16    2374         sqlite3VdbeExec [3]
                0.01    0.15   26068/26068       sqlite3VdbeCursorMoveto [6]
                0.00    0.00      53/54          moveToLeftmost [17]
                0.00    0.00       2/3           sqlite3BtreeBeginTrans [20]
                0.00    0.00       1/2370        sqlite3BtreeMovetoUnpacked [16]
                0.00    0.00    2372/2372        sqlite3BtreeNext [28]
                0.00    0.00       1/2371        moveToRoot [23]
                0.00    0.00   26068/28459       sqlite3VdbeSerialGet [34]
                0.00    0.00   23699/23708       sqlite3VdbeMemNulTerminate [35]
                0.00    0.00   23699/23699       sqlite3_transfer_bindings [36]
                0.00    0.00   11851/11851       sqlite3VdbeMemMakeWriteable [39]
                0.00    0.00    7108/7109        sqlite3BtreeKeySize [49]
                0.00    0.00    4741/9480        fetchPayload [40]
                0.00    0.00    4739/4739        sqlite3VdbeMemFromBtree [55]
                0.00    0.00    4739/9478        sqlite3VdbeMemRelease [41]
                0.00    0.00    2374/2376        sqlite3VdbeMemShallowCopy [65]
                0.00    0.00    2372/2376        sqlite3VdbeCheckFk [64]
                0.00    0.00    2372/2372        sqlite3VdbeCloseStatement [66]
                0.00    0.00    2372/4742        btreeParseCellPtr [54]
                0.00    0.00    2372/4742        btreeParseCell [53]
                0.00    0.00    2370/2391        sqlite3VdbeRecordCompare [63]
                0.00    0.00    2369/2369        sqlite3VdbeIntValue [67]
                0.00    0.00     893/893         sqlite3VdbeRealValue [74]
                0.00    0.00       3/3           sqlite3VdbeFreeCursor [245]
                0.00    0.00       3/3           allocateCursor [226]
                0.00    0.00       3/3           sqlite3BtreeCursor [237]
                0.00    0.00       2/9           sqlite3VdbeHalt [152]
                0.00    0.00       1/36          sqlite3BtreeLeave [98]
                0.00    0.00       1/6           sqlite3BtreeGetMeta [185]
                0.00    0.00       1/1           sqlite3GetVarint32 [345]