cycle profiler for VM opcodes

[jhylton]

BPO	510695
Nosy	@tim-one, @loewis, @arigo
Files	tsc.patch test_cgi.sum: Summary of test_cgi measurements pystone.sum: Summary of pystone measurements

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2004-06-08.08:20:20.000>
created_at = <Date 2002-01-30.13:21:32.000>
labels = ['interpreter-core']
title = 'cycle profiler for VM opcodes'
updated_at = <Date 2004-06-08.08:20:20.000>
user = 'https://bugs.python.org/jhylton'

bugs.python.org fields:

activity = <Date 2004-06-08.08:20:20.000>
actor = 'loewis'
assignee = 'jhylton'
closed = True
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2002-01-30.13:21:32.000>
creator = 'jhylton'
dependencies = []
files = ['3929', '3930', '3931']
hgrepos = []
issue_num = 510695
keywords = ['patch']
message_count = 9.0
messages = ['38815', '38816', '38817', '38818', '38819', '38820', '38821', '38822', '38823']
nosy_count = 4.0
nosy_names = ['tim.peters', 'loewis', 'jhylton', 'arigo']
pr_nums = []
priority = 'low'
resolution = 'accepted'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue510695'
versions = []

[jhylton]

This is just some code I'm noodling around with. It
counts the number of cycles each Python VM opcode takes
to execute, using the Pentium timestamp counter.

[loewis]

Logged In: YES
user_id=21627

Is this still of relevance?

[jhylton]

Logged In: YES
user_id=31392

sure

[arigo]

Logged In: YES
user_id=4771

I think that you should try and convince people that it is a
generally useful information to have, and that the fact that
it is highly non-portable does not hurt. Right now it looks
more like a change that a core developer would temporarily
want to do to tune the VM.

[loewis]

Logged In: YES
user_id=21627

OTOH, the patch is prepared for temporary usage, by means of
a configure option. Since nobody has been objecting
strongly, I'll accept this patch.

[tim-one]

Logged In: YES
user_id=31435

Changed resolution from Accepted to Out-of-Date -- several
parts of this patch fail to apply now. Leaving assigned to
Jeremy. Still seems like a fine idea to me!

[tim-one]

Logged In: YES
user_id=31435

Changed resolution from Accepted to Out-of-Date -- several
parts of this patch fail to apply now. Leaving assigned to
Jeremy. Still seems like a fine idea to me!

[tim-one]

Logged In: YES
user_id=31435

Changed resolution from Accepted to Out-of-Date -- several
parts of this patch fail to apply now. Leaving assigned to
Jeremy. Still seems like a fine idea to me!

[loewis]

Logged In: YES
user_id=21627

I have updated the patch, and committed it as

README 1.182
configure 1.446
configure.in 1.457
pyconfig.h.in 1.97
libsys.tex 1.70
pystate.h 2.29
NEWS 1.995
ceval.c 2.399
pystate.c 2.31
sysmodule.c 2.124