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bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements
From: |
Lars Ingebrigtsen |
Subject: |
bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling) |
Date: |
Thu, 18 Aug 2022 15:50:45 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
> Can you attach a debugger to this session, and produce a C and Lisp
> backtrace from Fnarrow_to_region and Fwiden when you do the above?
Setting a breakpoint on Fnarrow_to_region doesn't trigger -- the buffer
flips back and forth to [Narrow] anyway.
Fwiden is triggered all the time, but as far as I can see, never in a
relevant code path -- but I've made some progress in determining just
what triggers this behaviour: I need to have a process connection going.
Without processes being forked, the flipping back and forth doesn't
happen.
A couple examples of the calls to Fwiden:
0x0000555555759f8c in Fwiden () at editfns.c:2672
#1 Fwiden () at editfns.c:2659
#2 0x00005555556ff1ed in Ferase_buffer () at buffer.c:2318
#3 0x0000555555655f3d in code_conversion_save
(with_work_buf=with_work_buf@entry=true, multibyte=<optimized out>)
at coding.c:7875
#4 0x0000555555656b23 in decode_coding_object
(coding=coding@entry=0x5555573bedf0, src_object=src_object@entry=XIL(0),
from=from@entry=0, from_byte=from_byte@entry=0, to=to@entry=57,
to_byte=to_byte@entry=57, dst_object=<optimized out>) at coding.c:8129
#5 0x00005555557b6752 in read_and_dispose_of_process_output
(coding=0x5555573bedf0, nbytes=57, chars=0x7fffffffbe90 "PING 192.168.12.94
(192.168.12.94) 56(84) bytes of data.\n", p=<optimized out>) at process.c:6253
#6 read_process_output
(proc=proc@entry=XIL(0x5555579e538d), channel=channel@entry=17)
at process.c:6205
#7 0x00005555557bde76 in wait_reading_process_output
(time_limit=time_limit@entry=30, nsecs=nsecs@entry=0,
read_kbd=read_kbd@entry=-1, do_display=do_display@entry=true,
wait_for_cell=wait_for_cell@entry=XIL(0), wait_proc=wait_proc@entry=0x0,
just_wait_proc=<optimized out>)
at process.c:5889
#8 0x00005555555b8694 in sit_for
Thread 1 "emacs" hit Breakpoint 4, Fwiden () at editfns.c:2669
2669 {
(gdb) bt
#0 Fwiden () at editfns.c:2669
#1 0x00005555557b160e in exec_byte_code
(fun=<optimized out>, args_template=<optimized out>, nargs=<optimized out>,
args=<optimized out>) at bytecode.c:1489
#2 0x0000555555768ee3 in Ffuncall (nargs=1, args=0x7ffff092e050)
at eval.c:3014
#3 0x000055555576abb8 in Fapply (nargs=2, args=0x7ffff092e050) at eval.c:2638
#4 0x00005555557b0c03 in exec_byte_code
(fun=<optimized out>, args_template=<optimized out>, nargs=<optimized out>,
args=<optimized out>) at bytecode.c:809
#5 0x0000555555768ee3 in Ffuncall
(nargs=nargs@entry=2, args=args@entry=0x7fffffffcd10) at eval.c:3014
#6 0x00005555556e2dfe in call1 (arg1=XIL(0x5555572b14f5), fn=XIL(0xf4e0))
at /home/larsi/src/emacs/trunk/src/lisp.h:3239
#7 timer_check_2 (idle_timers=<optimized out>, timers=<optimized out>)
at keyboard.c:4697
#8 timer_check () at keyboard.c:4763
#9 0x00005555556e315d in readable_events (flags=flags@entry=1)
at keyboard.c:3540
#10 0x00005555556e3328 in get_input_pending (flags=flags@entry=1)
at keyboard.c:7338
#11 0x00005555556e33b1 in swallow_events (do_display=do_display@entry=true)
at keyboard.c:4499
(gdb) xbacktrace
"jit-lock-context-fontify" (0xf092e0a8)
0xf1ff0028 PVEC_COMPILED
"apply" (0xf092e050)
"timer-event-handler" (0xffffcd18)
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), (continued)
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Eli Zaretskii, 2022/08/17
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Lars Ingebrigtsen, 2022/08/17
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Eli Zaretskii, 2022/08/17
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Lars Ingebrigtsen, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Eli Zaretskii, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Eli Zaretskii, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Lars Ingebrigtsen, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Lars Ingebrigtsen, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Eli Zaretskii, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Eli Zaretskii, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling),
Lars Ingebrigtsen <=
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Eli Zaretskii, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Lars Ingebrigtsen, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Lars Ingebrigtsen, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Lars Ingebrigtsen, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Eli Zaretskii, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Lars Ingebrigtsen, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Eli Zaretskii, 2022/08/18
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Lars Ingebrigtsen, 2022/08/19
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Eli Zaretskii, 2022/08/19
- bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling), Lars Ingebrigtsen, 2022/08/19