* bug#12892: ‘gc-stats’ w/o ‘bytes-malloced’ @ 2012-11-15 8:42 Thien-Thi Nguyen 2013-03-05 17:52 ` Andy Wingo 0 siblings, 1 reply; 8+ messages in thread From: Thien-Thi Nguyen @ 2012-11-15 8:42 UTC (permalink / raw) To: 12892 [-- Attachment #1.1: Type: text/plain, Size: 742 bytes --] In pre-2.x Guile, ‘gc-stats’ returns an alist w/ keys: gc-time-taken cells-allocated total-cells-allocated cell-heap-size bytes-malloced gc-malloc-threshold gc-times gc-mark-time-taken cells-marked cells-swept malloc-yield cell-yield protected-objects cell-heap-segments In Guile 2.0.6, the keys are now: gc-time-taken heap-size heap-free-size heap-total-allocated heap-allocated-since-gc protected-objects gc-times I think the NEWS should mention this change and the documentation should summarize what the fields mean. Practically speaking, i am interested mostly in the 2.x equivalent for pre-2.x ‘bytes-malloced’, as its lack causes Guile-SDL to fail "make check DEBUG=1": [-- Attachment #1.2: .ttn.make-check.log.gz --] [-- Type: application/octet-stream, Size: 5325 bytes --] [-- Attachment #1.3: Type: text/plain, Size: 649 bytes --] by tripping up proc: (define (malloced) ;; prudence or superstition? you be the judge! (gc) (gc) (assq-ref (gc-stats) 'bytes-malloced)) in test/leak.scm. A related issue is how the error is reported. It seems strange that the file is "unknown". -- Thien-Thi Nguyen ..................................... GPG key: 4C807502 . NB: ttn at glug dot org is not me . . (and has not been since 2007 or so) . . ACCEPT NO SUBSTITUTES . ........... please send technical questions to mailing lists ........... [-- Attachment #2: Type: application/pgp-signature, Size: 197 bytes --] ^ permalink raw reply [flat|nested] 8+ messages in thread
* bug#12892: ‘gc-stats’ w/o ‘bytes-malloced’ 2012-11-15 8:42 bug#12892: ‘gc-stats’ w/o ‘bytes-malloced’ Thien-Thi Nguyen @ 2013-03-05 17:52 ` Andy Wingo [not found] ` <87fw09oz2w.fsf@zigzag.favinet> 0 siblings, 1 reply; 8+ messages in thread From: Andy Wingo @ 2013-03-05 17:52 UTC (permalink / raw) To: Thien-Thi Nguyen; +Cc: 12892 On Thu 15 Nov 2012 09:42, Thien-Thi Nguyen <ttn@gnuvola.org> writes: > In pre-2.x Guile, ‘gc-stats’ returns an alist w/ keys: > > gc-time-taken > cells-allocated > total-cells-allocated > cell-heap-size > bytes-malloced > gc-malloc-threshold > gc-times > gc-mark-time-taken > cells-marked > cells-swept > malloc-yield > cell-yield > protected-objects > cell-heap-segments > > In Guile 2.0.6, the keys are now: > > gc-time-taken > heap-size > heap-free-size > heap-total-allocated > heap-allocated-since-gc > protected-objects gc-times > > I think the NEWS should mention this change and the documentation should > summarize what the fields mean. The specifics of this interface were never documented, so there's no regression. For that reason I would not add to NEWS at this point, but documentation would be nice. Patches gladly accepted :) > Practically speaking, i am interested mostly in the 2.x equivalent for > pre-2.x ‘bytes-malloced’, as its lack causes Guile-SDL to fail "make > check DEBUG=1": What is the meaning of this field? We could track total allocations registered via scm_gc_register_allocation. Regards, Andy -- http://wingolog.org/ ^ permalink raw reply [flat|nested] 8+ messages in thread
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* bug#12892: ‘gc-stats’ w/o ‘bytes-malloced’ [not found] ` <87fw09oz2w.fsf@zigzag.favinet> @ 2013-03-06 7:00 ` Andy Wingo [not found] ` <87boaxotz6.fsf@zigzag.favinet> 0 siblings, 1 reply; 8+ messages in thread From: Andy Wingo @ 2013-03-06 7:00 UTC (permalink / raw) To: Thien-Thi Nguyen; +Cc: 12892 On Wed 06 Mar 2013 06:51, Thien-Thi Nguyen <ttn@gnuvola.org> writes: > What is the meaning of this field? > > It's a copy of the C global var ‘scm_mallocated’, which tracks "current > allocation" (all malloced minus all freed). There is no such C global var. > We could track total allocations registered via > scm_gc_register_allocation. > > Sounds complicated. On the contrary, this function is called already for mallocations. Andy -- http://wingolog.org/ ^ permalink raw reply [flat|nested] 8+ messages in thread
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* bug#12892: ‘gc-stats’ w/o ‘bytes-malloced’ [not found] ` <87boaxotz6.fsf@zigzag.favinet> @ 2013-03-06 16:03 ` Andy Wingo [not found] ` <87y5e0nxa0.fsf@zigzag.favinet> 2013-03-13 11:09 ` Andy Wingo 0 siblings, 2 replies; 8+ messages in thread From: Andy Wingo @ 2013-03-06 16:03 UTC (permalink / raw) To: Thien-Thi Nguyen; +Cc: 12892 On Wed 06 Mar 2013 08:41, Thien-Thi Nguyen <ttn@gnuvola.org> writes: > () Andy Wingo <wingo@pobox.com> > () Wed, 06 Mar 2013 08:00:08 +0100 > > On Wed 06 Mar 2013 06:51, Thien-Thi Nguyen <ttn@gnuvola.org> writes: > > > What is the meaning of this field? > > > > It's a copy of the C global var ‘scm_mallocated’, which tracks > > "current allocation" (all malloced minus all freed). > > There is no such C global var. > > http://git.savannah.gnu.org/cgit/guile.git/tree/libguile/gc.c?h=ttn-back-in-the-saddle#n210 > > You have forgotten perhaps that we are trying to figure out how to surf > a change between 1.8 and 2.0, and that "this field" is a 1.8 field? 1.8 is the old stable series, so it's not a great referent in the present tense. Anyway, Guile 2 does not track the number of bytes freed -- only the bytes that are mallocated. Andy -- http://wingolog.org/ ^ permalink raw reply [flat|nested] 8+ messages in thread
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* bug#12892: ‘gc-stats’ w/o ‘bytes-malloced’ [not found] ` <87y5e0nxa0.fsf@zigzag.favinet> @ 2013-03-07 6:53 ` Andy Wingo [not found] ` <87txono0k2.fsf@zigzag.favinet> 0 siblings, 1 reply; 8+ messages in thread From: Andy Wingo @ 2013-03-07 6:53 UTC (permalink / raw) To: Thien-Thi Nguyen; +Cc: 12892 On Wed 06 Mar 2013 20:28, Thien-Thi Nguyen <ttn@gnuvola.org> writes: > Anyway, Guile 2 does not track the number of bytes freed -- only the > bytes that are mallocated. > > OK, that's what i need to know. I'll disable this particular test for > Guile 2, then. Thanks. Cool. I apologize if I came across as harsh. Regards, Andy -- http://wingolog.org/ ^ permalink raw reply [flat|nested] 8+ messages in thread
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* bug#12892: ‘gc-stats’ w/o ‘bytes-malloced’ [not found] ` <87txono0k2.fsf@zigzag.favinet> @ 2013-03-07 19:21 ` Andy Wingo 2013-03-07 20:05 ` Thien-Thi Nguyen 0 siblings, 1 reply; 8+ messages in thread From: Andy Wingo @ 2013-03-07 19:21 UTC (permalink / raw) To: Thien-Thi Nguyen; +Cc: 12892 On Thu 07 Mar 2013 13:29, Thien-Thi Nguyen <ttn@gnuvola.org> writes: > What is harsh, however, is the constant rejection by debbugs of my mail: > <http://lists.gnu.org/archive/html/bug-guile/2013-03/threads.html>. > Am i missing something? I have no earthly idea why this is happening; it's certainly not intentional. Try mailing help-debbugs@gnu.org to get folks to grep the logs? If that ML is itself managed by debbugs, you could mail someone directly I guess -- Jim Meyering perhaps? Dunno. Andy -- http://wingolog.org/ ^ permalink raw reply [flat|nested] 8+ messages in thread
* bug#12892: ‘gc-stats’ w/o ‘bytes-malloced’ 2013-03-07 19:21 ` Andy Wingo @ 2013-03-07 20:05 ` Thien-Thi Nguyen 0 siblings, 0 replies; 8+ messages in thread From: Thien-Thi Nguyen @ 2013-03-07 20:05 UTC (permalink / raw) To: Andy Wingo; +Cc: 12892 () Andy Wingo <wingo@pobox.com> () Thu, 07 Mar 2013 20:21:53 +0100 [...] Dunno. As an experiment, i've changed the cc to bug-guile in this response. Maybe that will work. Anyway, i'll followup w/ the debbugs folks. -- Thien-Thi Nguyen GPG key: 4C807502 ^ permalink raw reply [flat|nested] 8+ messages in thread
* bug#12892: ‘gc-stats’ w/o ‘bytes-malloced’ 2013-03-06 16:03 ` Andy Wingo [not found] ` <87y5e0nxa0.fsf@zigzag.favinet> @ 2013-03-13 11:09 ` Andy Wingo 1 sibling, 0 replies; 8+ messages in thread From: Andy Wingo @ 2013-03-13 11:09 UTC (permalink / raw) To: Thien-Thi Nguyen; +Cc: 12892-close On Wed 06 Mar 2013 17:03, Andy Wingo <wingo@pobox.com> writes: > Guile 2 does not track the number of bytes freed -- only the bytes > that are mallocated. For this reason I'll close this bug, as it doesn't seem possible to provide a good estimate on the current amount of bytes that are live but untracked by GC. Andy -- http://wingolog.org/ ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2013-03-13 11:09 UTC | newest]
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2012-11-15 8:42 bug#12892: ‘gc-stats’ w/o ‘bytes-malloced’ Thien-Thi Nguyen
2013-03-05 17:52 ` Andy Wingo
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2013-03-06 7:00 ` Andy Wingo
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2013-03-06 16:03 ` Andy Wingo
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2013-03-07 6:53 ` Andy Wingo
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2013-03-07 19:21 ` Andy Wingo
2013-03-07 20:05 ` Thien-Thi Nguyen
2013-03-13 11:09 ` Andy Wingo
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