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From: Didier Verna <didier@xemacs.org>
To: ding@gnus.org
Subject: Re: C y on really large groups
Date: Wed, 11 May 2011 10:15:50 +0200	[thread overview]
Message-ID: <muxfwolsle1.fsf@uzeb.lrde.epita.fr> (raw)
In-Reply-To: <muxk4dxsmfk.fsf@uzeb.lrde.epita.fr> (Didier Verna's message of "Wed, 11 May 2011 09:53:19 +0200")

[-- Attachment #1: Type: text/plain, Size: 420 bytes --]

I wrote:

> Now, you're all upsetting me guys. I'm a bit at a loss figuring out
> what could cause the problem, but I'll try to investigate.

  FWIW, here's the result of profiling a catchup on a group with 3800
messages. I'd be curious to see yours. XEmacs spends almost half the
time in GC (that, I could see) and an important time in SORT as well.

I'm especially interested to see if you SORT as much as I do here.


[-- Attachment #2: prof.txt --]
[-- Type: text/plain, Size: 27575 bytes --]

Function Name                         Ticks/Total %Usage Calls GC-Usage/  Total
===========================================/===== ====== ===== ========/=======
(in garbage collection)                1665/ 1667 38.373    89        0/  10324
sort                                    814/  814 18.760  3816
gnus-compress-sequence                  231/  231  5.324  3816   137340/ 137340
define-coding-system-alias              190/  214  4.379 30536 49834752/49834752
write-region-internal                   178/  330  4.102  3817  1374120/1816964
(profile overhead)                      178/  178  4.102
(in internal-external conversion)       165/  165  3.803 80170   442844/ 442844
gnus-uncompress-range                   156/  224  3.595  3816 87394032/87394032
(in expand-file-name)                   148/  151  3.411 103059  2442880/2442880
kill-buffer                              66/  111  1.521 22909   549840/ 549956
decode-coding-region                     56/   56  1.291 15272  2168652/2168652
decode-coding-string                     48/  435  1.106 15272      216/19213920
byte-code                                43/ 1134  0.991 42004      240/32600128
get-buffer-create                        39/   42  0.899 22910 24405712/24405712
insert-file-contents-internal            31/   80  0.714  3817   473332/ 473448
file-name-as-directory                   29/   30  0.668 30536  1710016/1710016
prin1                                    23/   23  0.530  3817
file-attributes                          20/   47  0.461  7634  1893232/1893232
file-exists-p                            19/   69  0.438 11451
mm-auto-mode-alist                       17/   17  0.392  3817
(in qxe_realpath)                        16/   52  0.369  3817
nnmail-group-pathname                    15/  120  0.346 15268   977152/4030752
nnheader-replace-duplicate-chars-in-string
					 13/   13  0.300 15268   427504/ 427504
string-match                             11/   11  0.254 19097      112/    112
nntp-group-pathname                      11/  625  0.254 15268   366432/25132720
gnus-add-marked-articles                  9/ 2085  0.207  3818     1032/87583184
format                                    8/    9  0.184  3823   168332/ 168332
nntp-open-marks                           7/  465  0.161  3817    91680/25238772
featurep                                  7/    7  0.161  3822
read                                      7/    9  0.161  3817   717524/ 717524
nntp-possibly-create-directory            7/  534  0.161  7634   183336/37804740
gnus-find-method-for-group                6/   12  0.138  3823   137628/ 137628
#<compiled-function (from "/usr/local/share/xemacs/site-packages/lisp/gnus/gnus-group.elc") (article) "...(17)" [article group gnus-add-marked-articles expire gnus-request-set-mark add (expire)] 5 0x1f44>
					  6/ 4342  0.138  3816   274808/177418188
select-buffer-killed-text                 6/   17  0.138 22909
write-region                              6/  397  0.138  3817       72/1817384
generate-new-buffer-name                  6/    6  0.138 22909
select-buffer-killed-default              6/    9  0.138 22909
assoc                                     5/    5  0.115 84016
find-file-name-handler                    5/    5  0.115  3817
gnus-request-set-mark                     4/ 2232  0.092  3817   106996/89583424
buffer-string                             4/   11  0.092 15275        0/ 427768
substitute                                4/    4  0.092 15268
insert-file-contents                      4/   97  0.092  3817    91608/ 656664
gnus-range-add                            4/    4  0.092  3818   137364/ 228948
gnus-remassoc                             4/    6  0.092 72528
nnheader-translate-file-chars             4/    4  0.092 15268
format-decode                             4/    5  0.092  3817
permanent-buffers-kill-buffer-function    4/    6  0.092 22909
mm-insert-file-contents                   3/  119  0.069  3817        0/ 656664
mm-subst-char-in-string                   3/    7  0.069 15268
expand-file-name                          2/   93  0.046 45804        0/2442880
set-buffer-file-coding-system             2/    3  0.046  3817
nntp-save-marks                           2/ 1192  0.046  3817    91608/44448300
find-coding-system                        1/    1  0.023 11451
extentp                                   1/    1  0.023 22909
intern-soft                               1/    1  0.023 11497
bufferp                                   1/    1  0.023 30550
get-text-property                         1/    2  0.023   128
nnheader-update-marks-actions             1/    7  0.023  3817        0/ 320484
gnus-update-alist-soft                    1/    1  0.023  3818    91584/  91584
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erase-buffer                              1/    1  0.023  3819
(in map-extents-internal)                 1/    1  0.023  1016     1652/   1652
gnus-prin1                                1/   24  0.023  3817
gnus-get-function                         1/    2  0.023  3817
nntp-request-set-mark                     1/ 2094  0.023  3817      192/89078880
nntp-marks-directory                      1/   48  0.023 15268        0/1526800
#<compiled-function (from "/usr/local/src/xemacs/21.5-ndebug/lisp/coding.elc") (sym args fun harg handlers) "...(9)" [args define-coding-system-alias file-name binary] 3 0xa6c>
					  1/  215  0.023 30536        0/49834752
buffer-substring                          1/    1  0.023 15276   427812/ 428260
gnus-run-hook-with-args                   1/    1  0.023  3817    91608/  91608
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add-timeout                               0/    0  0.000     3       72/     72
markerp                                   0/    1  0.000 22909
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charset-width                             0/    0  0.000     9
set-extent-property                       0/    0  0.000     1
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concat                                    0/    0  0.000     6      244/    244
command-execute                           0/ 4345  0.000              0/177470648
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current-time                              0/    0  0.000     7      252/    252
local-variable-p                          0/    0  0.000  3817
nnheader-insert-file-contents             0/  119  0.000  3817        0/ 656664
gnus-group-mark-group                     0/    0  0.000     1        0/    112
next_event_internal()                     0/    0  0.000     4      116/    116
device-on-window-system-p                 0/    0  0.000     1
string-to-number                          0/    0  0.000     9
get-buffer                                0/    0  0.000     4
gnus-agent-possibly-alter-active          0/    0  0.000     1        0/     36
gnus-group-process-prefix                 0/    0  0.000     1       12/     12
gnus-current-topic                        0/    0  0.000     3
gnus-range-length                         0/    0  0.000     3
font-lock-pre-idle-hook                   0/    0  0.000     4
console-type                              0/    0  0.000     9
gnus-put-text-property-excluding-characters-with-faces
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gnus-topic-update-topic                   0/    0  0.000     1        0/   3620
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(lambda (object) (setq object (window-buffer object)) (when (or (symbol-value-in-buffer (quote slime-mode) object) (symbol-value-in-buffer (quote slime-popup-buffer-mode) object)) (with-current-buffer object (setq redraw-modeline (or (not (equal slime-modeline-string (setq slime-modeline-string (slime-modeline-string)))) redraw-modeline)))))
					  0/    0  0.000     1        0/     36
walk-windows                              0/    0  0.000     6        0/    144
gnus-run-hooks                            0/    0  0.000     2       24/   3644
gnus-group-catchup-current-all            0/ 4345  0.000     1       20/177470648
event-to-character                        0/    0  0.000     1
gnus-agent-method-p                       0/    0  0.000     1
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truncate-command-history-for-gc           0/    0  0.000    89        0/  10324
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prin1-to-string                           0/    0  0.000     1      136/    136
gnus-mode-line-buffer-identification      0/    0  0.000     1       96/    124
gnus-group-decoded-name                   0/    0  0.000     2        0/   2756
gnus-method-option-p                      0/    0  0.000     1        0/     28
gnus-topic-find-topology                  0/    0  0.000     2       24/     24
gnus-parameters-get-parameter             0/    0  0.000     1        0/     36
disable-timeout                           0/    0  0.000     3      -36/    -36
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frame-selected-window                     0/    0  0.000     1
lambda                                    0/    0  0.000     4        0/    288
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point                                     0/    0  0.000    17
message                                   0/    0  0.000     2       60/    504
mapcar                                    0/    0  0.000     9      144/    156
execute-extended-command                  0/ 4345  0.000              0/177470648
symbol-value-in-buffer                    0/    0  0.000    94
profile-command                           0/ 4345  0.000              0/177470648
modeline-update-buffer-names              0/    0  0.000     1        0/    516
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current-message-label                     0/    0  0.000     1
should-use-dialog-box-p                   0/    0  0.000     1
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gnus-group-timestamp-delta                0/    0  0.000     1       24/     96
itimer-uses-arguments                     0/    0  0.000     2
text-property-any                         0/    0  0.000     7
gnus-group-level                          0/    0  0.000     1
append-message                            0/    0  0.000     2       48/    180
set-itimer-value-internal                 0/    0  0.000    29
delete-char                               0/    0  0.000     2        0/     56
gnus-group-remove-mark                    0/    0  0.000     1        0/    112
event-key                                 0/    0  0.000     1
raw-append-message                        0/    0  0.000     2       48/    132
itimer-time-difference                    0/    0  0.000     6      288/    288
gnus-range-map                            0/ 4343  0.000     1       76/177418264
gnus-sequence-of-unread-articles          0/    0  0.000     1      228/    228
remove-message                            0/    0  0.000     2       12/     60
gnus-topic-hierarchical-parameters        0/    0  0.000     1       24/     60
eq                                        0/    0  0.000     5
frame-type                                0/    0  0.000     9
charset-property                          0/    0  0.000     9
gnus-topic-insert-topic-line              0/    0  0.000     1      120/   3528
gnus-group-name-charset                   0/    0  0.000     3       72/    168
gnus-topic-group-indentation              0/    0  0.000     1        0/     24
insert-char                               0/    0  0.000     9        0/     56
gnus-group-auto-expirable-p               0/    0  0.000     1        0/    120
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gnus-topic-parent-topic                   0/    0  0.000    44
natnump                                   0/    0  0.000 30550
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gnus-group-catchup                        0/ 4343  0.000     1      268/177446436
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make-marker                               0/    1  0.000  3817    91608/  91608
event-modifier-bits                       0/    0  0.000     1
#<compiled-function (from "/usr/local/share/xemacs/site-packages/lisp/gnus/gnus-group.elc") (x) "...(13)" [gnus-valid-select-methods gnus-select-method method x assoc symbol-name] 4 0x1eca>
					  0/    0  0.000     2
vector                                    0/    0  0.000     1       16/     16
#<compiled-function (from "/usr/local/src/xemacs/21.5-ndebug/lisp/simple.elc") nil "...(10)" [log run-hook-with-args remove-message-hook] 4 0x527>
					  0/    0  0.000     1        0/     48
key-binding                               0/    0  0.000     1      464/    464
itimer-function-arguments                 0/    0  0.000     2
subtract-time                             0/    0  0.000     1        0/     36
itimer-value                              0/    0  0.000   108
gnus-group-topic-unread                   0/    0  0.000     2
get-coding-system                         0/    0  0.000  3817
>                                         0/    0  0.000    10
make-string                               0/    0  0.000     9      304/    304
gnus-current-topics                       0/    0  0.000     1       12/     12
gnus-undo-register-1                      0/    0  0.000     1       24/     24
itimer-disable-timeout                    0/    0  0.000     3        0/    -36
gnus-group-catchup-current                0/ 4345  0.000     1      168/177470628
gnus-topic-parameters                     0/    0  0.000     1        0/     12
char-charset                              0/    0  0.000     9
redisplay-echo-area                       0/    0  0.000     2       60/     60
frame-property                            0/    0  0.000     1
point-at-bol                              0/    0  0.000    16
noninteractive                            0/    0  0.000    89
buffer-name                               0/    0  0.000 45863
window-minibuffer-p                       0/    0  0.000     6
gnus-group-group-name                     0/    0  0.000     5
gnus-group-update-group-line              0/    0  0.000     1      232/  10044
hash-table-count                          0/    0  0.000     4
cdr                                       0/    0  0.000    45
gnus-add-text-properties                  0/    0  0.000     7        0/   1780
set-default                               0/    0  0.000  7634
-------------------------------------------------------------------------------
Total                                  4339      100.000 1339602 177470648


Ticks/Total     = Ticks this function/this function and descendants
Calls           = Number of calls to this function
GC-Usage/Total  = Lisp allocation this function/this function and descendants
One tick        = 1 ms

[-- Attachment #3: Type: text/plain, Size: 153 bytes --]



-- 
Resistance is futile. You will be jazzimilated.

Scientific site:   http://www.lrde.epita.fr/~didier
Music (Jazz) site: http://www.didierverna.com

  reply	other threads:[~2011-05-11  8:15 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-10 14:44 Didier Verna
2011-05-10 15:40 ` Adam Sjøgren
2011-05-10 16:01   ` Tassilo Horn
2011-05-10 16:09     ` Adam Sjøgren
2011-05-10 19:57       ` Tassilo Horn
2011-05-10 16:16     ` Antoine Levitt
2011-05-11  7:53       ` Didier Verna
2011-05-11  8:15         ` Didier Verna [this message]
2011-05-11  8:19           ` Didier Verna
2011-05-11  8:56             ` Didier Verna
2011-05-11 21:47               ` Ted Zlatanov
2011-05-30 20:06                 ` Lars Magne Ingebrigtsen

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