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| author | Ludovic Courtès <ludo@gnu.org> | 2017-12-13 15:01:07 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2017-12-13 23:11:53 +0100 |
| commit | 34797d8afc3c5f1211a4baf1161de640fc630a2e (patch) | |
| tree | 73da4757dbf1aa437d87a8cb23bb0122c6c61aec | |
| parent | d1f01e48457f8cac9e64fb9f890332d5d93f430e (diff) | |
| download | gnu-guix-34797d8afc3c5f1211a4baf1161de640fc630a2e.tar gnu-guix-34797d8afc3c5f1211a4baf1161de640fc630a2e.tar.gz | |
hydra: Invalidate derivation caches after each architecture evaluation.
This reduces max RSS from 1.3G to 1.0G.
* guix/derivations.scm (invalidate-derivation-caches!): New procedure.
* build-aux/hydra/gnu-system.scm (hydra-jobs): Use it. Add 'format'
call.
| -rw-r--r-- | build-aux/hydra/gnu-system.scm | 7 | ||||
| -rw-r--r-- | guix/derivations.scm | 10 |
2 files changed, 17 insertions, 0 deletions
diff --git a/build-aux/hydra/gnu-system.scm b/build-aux/hydra/gnu-system.scm index d9b9c55d9c..5aaac5220f 100644 --- a/build-aux/hydra/gnu-system.scm +++ b/build-aux/hydra/gnu-system.scm @@ -334,6 +334,13 @@ valid." (parameterize ((%graft? #f)) ;; Return one job for each package, except bootstrap packages. (append-map (lambda (system) + (format (current-error-port) + "evaluating for '~a' (heap size: ~a MiB)...~%" + system + (round + (/ (assoc-ref (gc-stats) 'heap-size) + (expt 2. 20)))) + (invalidate-derivation-caches!) (case subset ((all) ;; Build everything, including replacements. diff --git a/guix/derivations.scm b/guix/derivations.scm index 38cefb6100..97f96d99c1 100644 --- a/guix/derivations.scm +++ b/guix/derivations.scm @@ -90,6 +90,7 @@ derivation-path->output-paths derivation raw-derivation + invalidate-derivation-caches! map-derivation @@ -841,6 +842,15 @@ output should not be used." (hash-set! %derivation-cache file drv*) drv*))) +(define (invalidate-derivation-caches!) + "Invalidate internal derivation caches. This is mostly useful for +long-running processes that know what they're doing. Use with care!" + ;; Typically this is meant to be used by Cuirass and Hydra, which can clear + ;; caches when they start evaluating packages for another architecture. + (invalidate-memoization! derivation->bytevector) + (invalidate-memoization! derivation-path->base16-hash) + (hash-clear! %derivation-cache)) + (define* (map-derivation store drv mapping #:key (system (%current-system))) "Given MAPPING, a list of pairs of derivations, return a derivation based on |