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Re: Fewer mallocs is better, episode #47
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From: Henrik Holst via curl-library <curl-library_at_lists.haxx.se>
Date: Wed, 26 Jan 2022 11:04:21 +0100
that is wonderful to see!
/HH
Den ons 26 jan. 2022 kl 10:24 skrev Daniel Stenberg via curl-library <
curl-library_at_lists.haxx.se>:
> Hi,
>
> Just wanted to share this fun fact with you all.
>
> Here's my test command line:
>
> curl -sL https://google.com -o /dev/null
>
> I ran this command line with 4 recent curl versions and I counted the
> total
> number of allocations (using the script shown below). These are only
> allocations done by curl and libcurl code, the dependencies' allocations
> are
> not included.
>
> * 7.70.0
>
> Allocations: 415 Maximum allocated: 239432
>
> * 7.78.0
>
> Allocations: 391 Maximum allocated: 201926
>
> * 7.81.0
>
> Allocations: 391 Maximum allocated: 201700
>
> * 7.82.0-DEV (as of git master right now)
>
> Allocations: 174 Maximum allocated: 201684
>
> This is a 55% reduction in number of allocations from 7.81.0 (while
> maintaining and even shrinking the max amount a tiny bit)! The bulk of
> this
> improvement comes from this single commit:
> https://github.com/curl/curl/commit/955cb99130f7c
>
> The test script, requires a curl built debug-enabled:
>
> #!/bin/sh
> export CURL_MEMDEBUG=$HOME/tmp/curlmem.log
> ./src/curl -sL https://google.com -o /dev/null
> ./tests/memanalyze.pl -v $HOME/tmp/curlmem.log
>
> --
>
> / daniel.haxx.se
> | Commercial curl support up to 24x7 is available!
> | Private help, bug fixes, support, ports, new features
> | https://curl.se/support.html
> --
> Unsubscribe: https://lists.haxx.se/listinfo/curl-library
> Etiquette: https://curl.haxx.se/mail/etiquette.html
>
Date: Wed, 26 Jan 2022 11:04:21 +0100
that is wonderful to see!
/HH
Den ons 26 jan. 2022 kl 10:24 skrev Daniel Stenberg via curl-library <
curl-library_at_lists.haxx.se>:
> Hi,
>
> Just wanted to share this fun fact with you all.
>
> Here's my test command line:
>
> curl -sL https://google.com -o /dev/null
>
> I ran this command line with 4 recent curl versions and I counted the
> total
> number of allocations (using the script shown below). These are only
> allocations done by curl and libcurl code, the dependencies' allocations
> are
> not included.
>
> * 7.70.0
>
> Allocations: 415 Maximum allocated: 239432
>
> * 7.78.0
>
> Allocations: 391 Maximum allocated: 201926
>
> * 7.81.0
>
> Allocations: 391 Maximum allocated: 201700
>
> * 7.82.0-DEV (as of git master right now)
>
> Allocations: 174 Maximum allocated: 201684
>
> This is a 55% reduction in number of allocations from 7.81.0 (while
> maintaining and even shrinking the max amount a tiny bit)! The bulk of
> this
> improvement comes from this single commit:
> https://github.com/curl/curl/commit/955cb99130f7c
>
> The test script, requires a curl built debug-enabled:
>
> #!/bin/sh
> export CURL_MEMDEBUG=$HOME/tmp/curlmem.log
> ./src/curl -sL https://google.com -o /dev/null
> ./tests/memanalyze.pl -v $HOME/tmp/curlmem.log
>
> --
>
> / daniel.haxx.se
> | Commercial curl support up to 24x7 is available!
> | Private help, bug fixes, support, ports, new features
> | https://curl.se/support.html
> --
> Unsubscribe: https://lists.haxx.se/listinfo/curl-library
> Etiquette: https://curl.haxx.se/mail/etiquette.html
>
-- Unsubscribe: https://lists.haxx.se/listinfo/curl-library Etiquette: https://curl.haxx.se/mail/etiquette.htmlReceived on 2022-01-26