Eelco Dolstra e82767910c Add some basic profiling support to the evaluator ... Setting the environment variable NIX_COUNT_CALLS to 1 enables some basic profiling in the evaluator. It will count calls to functions and primops as well as evaluations of attributes. For example, to see where evaluation of a NixOS configuration spends its time: $ NIX_SHOW_STATS=1 NIX_COUNT_CALLS=1 ./src/nix-instantiate/nix-instantiate '<nixos>' -A system --readonly-mode ... calls to 39 primops: 239532 head 233962 tail 191252 hasAttr ... calls to 1595 functions: 224157 `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/lists.nix:17:19' 221767 `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/lists.nix:17:14' 221767 `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/lists.nix:17:10' ... evaluations of 7088 attributes: 167377 undefined position 132459 `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/attrsets.nix:119:41' 47322 `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/attrsets.nix:13:21' ...		2012-08-12 23:29:28 -04:00
..
attr-path.cc	Fix compilation on FreeBSD	2012-03-05 22:04:40 +01:00
attr-path.hh	Use "#pragma once" to prevent repeated header file inclusion	2012-07-18 14:59:03 -04:00
common-opts.cc	Fix error message	2012-02-09 18:56:48 +01:00
common-opts.hh	Use "#pragma once" to prevent repeated header file inclusion	2012-07-18 14:59:03 -04:00
eval-inline.hh	Use "#pragma once" to prevent repeated header file inclusion	2012-07-18 14:59:03 -04:00
eval.cc	Add some basic profiling support to the evaluator	2012-08-12 23:29:28 -04:00
eval.hh	Add some basic profiling support to the evaluator	2012-08-12 23:29:28 -04:00
get-drvs.cc	* Inline some functions and get rid of the indirection through	2012-02-04 13:50:25 +00:00
get-drvs.hh	Use "#pragma once" to prevent repeated header file inclusion	2012-07-18 14:59:03 -04:00
lexer.l	* Add a Nix expression search path feature. Paths between angle	2011-08-06 16:05:24 +00:00
Makefile.am	* Inline some functions and get rid of the indirection through	2012-02-04 13:50:25 +00:00
names.cc	* Export the nix-env derivation name parsing and version comparison	2008-07-01 10:10:32 +00:00
names.hh	Use "#pragma once" to prevent repeated header file inclusion	2012-07-18 14:59:03 -04:00
nix.sdf	First attempt to update Nix SDF grammar to match the actual bison grammar	2008-06-04 14:36:46 +00:00
nixexpr.cc	* Allow a default value in attribute selection by writing	2011-07-13 12:19:57 +00:00
nixexpr.hh	Add some basic profiling support to the evaluator	2012-08-12 23:29:28 -04:00
parser.y	Use Bison 2.5	2012-04-13 14:28:26 +02:00
primops.cc	Add some basic profiling support to the evaluator	2012-08-12 23:29:28 -04:00
symbol-table.hh	Use "#pragma once" to prevent repeated header file inclusion	2012-07-18 14:59:03 -04:00
value-to-xml.cc	Fix compilation on FreeBSD	2012-03-05 22:04:40 +01:00
value-to-xml.hh	Use "#pragma once" to prevent repeated header file inclusion	2012-07-18 14:59:03 -04:00
value.hh	Use "#pragma once" to prevent repeated header file inclusion	2012-07-18 14:59:03 -04:00