$ go tool pprof --alloc_space http://localhost:6060/debug/pprof/heap
Read http://localhost:6060/debug/pprof/symbol
Fetching /pprof/heap profile from localhost:6060 to
  /tmp/V1VPMoi_qL
Wrote profile to /tmp/V1VPMoi_qL
Adjusting heap profiles for 1-in-524288 sampling rate
Welcome to pprof!  For help, type 'help'.
(pprof) top25
Total: 2774115.3 MB
825914.5  29.8%  29.8% 826964.0  29.8% github.com/couchbase/query/parser/n1ql.func·003
790553.0  28.5%  58.3% 844779.0  30.5% github.com/couchbase/query/parser/n1ql.yyParse
491846.0  17.7%  76.0% 491846.0  17.7% github.com/couchbase/query/execution.newBase
377708.0  13.6%  89.6% 404886.0  14.6% github.com/couchbase/query/parser/n1ql.NewLexerWithInit
 52013.0   1.9%  91.5%  52013.0   1.9% github.com/couchbase/query/parser/n1ql.(*Lexer).next
 33989.0   1.2%  92.7%  33989.0   1.2% bufio.NewReaderSize
 12261.5   0.4%  93.2%  14560.5   0.5% github.com/couchbase/query/algebra.subqueryPrivileges
  8764.0   0.3%  93.5%   8764.0   0.3% net/textproto.MIMEHeader.Set
  8022.5   0.3%  93.8%   9872.0   0.4% github.com/couchbase/query/server.NewBaseRequest
  6808.5   0.2%  94.0%   6808.5   0.2% bufio.NewWriter
  6304.0   0.2%  94.2%   6472.5   0.2% net/textproto.(*Reader).ReadMIMEHeader
  6202.0   0.2%  94.5%   6420.0   0.2% github.com/couchbase/query/algebra.(*KeyspaceTerm).Privileges
  6000.5   0.2%  94.7%  19814.0   0.7% github.com/couchbase/query/algebra.(*Subselect).Privileges
  5793.0   0.2%  94.9%  13303.0   0.5% encoding/json.Marshal
  5244.0   0.2%  95.1% 169064.0   6.1% github.com/couchbase/query/execution.NewSequence
  4949.0   0.2%  95.3%   5144.5   0.2% encoding/json.(*Decoder).readValue
  4528.5   0.2%  95.4%   4528.5   0.2% runtime.convT2E
  4314.0   0.2%  95.6%   4321.0   0.2% github.com/couchbase/query/server/http.(*bufferedWriter).writeString
  4111.5   0.1%  95.7%   4111.5   0.1% io/ioutil.readAll
  4083.5   0.1%  95.9%  45580.1   1.6% github.com/couchbase/query/server/http.newHttpRequest
  3776.5   0.1%  96.0%   3776.5   0.1% github.com/couchbase/query/value.objectValue.SetField
  3549.5   0.1%  96.1%   4895.0   0.2% github.com/couchbase/query/planner.(*builder).VisitSubselect
  3430.5   0.1%  96.3%   4919.0   0.2% net/http.NewRequest
  3320.0   0.1%  96.4%  18884.1   0.7% net/http.(*Transport).dialConn
  3120.5   0.1%  96.5%  12785.0   0.5% github.com/couchbase/query/server/http.(*httpRequest).writeError