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-rw-r--r--Makefile.am1
-rw-r--r--guix/profiling.scm52
-rw-r--r--guix/store.scm19
3 files changed, 62 insertions, 10 deletions
diff --git a/Makefile.am b/Makefile.am
index ddbf7a7984..85b9ab36d2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -102,6 +102,7 @@ MODULES = \
guix/http-client.scm \
guix/gnupg.scm \
guix/elf.scm \
+ guix/profiling.scm \
guix/store.scm \
guix/cvs-download.scm \
guix/svn-download.scm \
diff --git a/guix/profiling.scm b/guix/profiling.scm
new file mode 100644
index 0000000000..753fc6c22e
--- /dev/null
+++ b/guix/profiling.scm
@@ -0,0 +1,52 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix profiling)
+ #:use-module (ice-9 match)
+ #:export (profiled?
+ register-profiling-hook!))
+
+;;; Commentary:
+;;;
+;;; Basic support for Guix-specific profiling.
+;;;
+;;; Code:
+
+(define profiled?
+ (let ((profiled
+ (or (and=> (getenv "GUIX_PROFILING") string-tokenize)
+ '())))
+ (lambda (component)
+ "Return true if COMPONENT profiling is active."
+ (member component profiled))))
+
+(define %profiling-hooks
+ ;; List of profiling hooks.
+ (map (match-lambda
+ ("after-gc" after-gc-hook)
+ ((or "exit" #f) exit-hook))
+ (or (and=> (getenv "GUIX_PROFILING_EVENTS") string-tokenize)
+ '("exit"))))
+
+(define (register-profiling-hook! component thunk)
+ "Register THUNK as a profiling hook for COMPONENT, a string such as
+\"rpc\"."
+ (when (profiled? component)
+ (for-each (lambda (hook)
+ (add-hook! hook thunk))
+ %profiling-hooks)))
diff --git a/guix/store.scm b/guix/store.scm
index f336df85cc..e6e45ba89c 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -25,6 +25,7 @@
#:use-module (guix base16)
#:use-module (guix base32)
#:use-module (guix hash)
+ #:use-module (guix profiling)
#:autoload (guix build syscalls) (terminal-columns)
#:use-module (rnrs bytevectors)
#:use-module (ice-9 binary-ports)
@@ -794,16 +795,14 @@ bytevector) as its internal buffer, and a thunk to flush this output port."
(define record-operation
;; Optionally, increment the number of calls of the given RPC.
- (let ((profiled (or (and=> (getenv "GUIX_PROFILING") string-tokenize)
- '())))
- (if (member "rpc" profiled)
- (begin
- (add-hook! exit-hook show-rpc-profile)
- (lambda (name)
- (let ((count (or (hashq-ref %rpc-calls name) 0)))
- (hashq-set! %rpc-calls name (+ count 1)))))
- (lambda (_)
- #t))))
+ (if (profiled? "rpc")
+ (begin
+ (register-profiling-hook! "rpc" show-rpc-profile)
+ (lambda (name)
+ (let ((count (or (hashq-ref %rpc-calls name) 0)))
+ (hashq-set! %rpc-calls name (+ count 1)))))
+ (lambda (_)
+ #t)))
(define-syntax operation
(syntax-rules ()