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From: Peter Korsgaard <peter@korsgaard.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v3 1/2] support/scripts/pkg-stats: add support for CVE reporting
Date: Wed, 19 Feb 2020 22:34:07 +0100	[thread overview]
Message-ID: <87mu9ecldc.fsf@dell.be.48ers.dk> (raw)
In-Reply-To: <CAAXf6LV8MSXPGrQW2GUhJcR4pjupw2EHFb7H6x4R0OkbrYFiMQ@mail.gmail.com> (Thomas De Schampheleire's message of "Wed, 19 Feb 2020 21:33:45 +0100")

>>>>> "Thomas" == Thomas De Schampheleire <patrickdepinguin+buildroot@gmail.com> writes:

Hi,

 > In the memory usage, RES first increased to ~4G, and then dropped back
 > to 2.2G. I think this is the Python garbage collector kicking in,
 > _after_ the new file is loaded.
 > So the worst case memory usage is roughly the size of two largest
 > subsequent years.

 > Doing some quick google search, I stumbled upon the 'pandas' python
 > package, which has a read_json function too. During a quick test, it
 > seemed to be more memory efficient, and the total memory size on
 > subsequent reads stayed in the 2.x GB range.

 > content = pandas.read_json('/tmp/nvd/nvdcve-1.0-2019.json.gz')
 > content = pandas.read_json('/tmp/nvd/nvdcve-1.0-2018.json.gz')

 > In the full test of pkg-stats, I still saw a peak memory usage near
 > the end, but it 'seemed' better :-)

Or perhaps something that doesn't load the entire json structure into
memory? Jsonslicer seems like a possible solution:

https://pypi.org/project/jsonslicer/

-- 
Bye, Peter Korsgaard

  reply	other threads:[~2020-02-19 21:34 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-15 12:44 [Buildroot] [PATCH v3 0/2] Add CVE reporting to pkg-stats Titouan Christophe
2020-02-15 12:44 ` [Buildroot] [PATCH v3 1/2] support/scripts/pkg-stats: add support for CVE reporting Titouan Christophe
2020-02-15 15:49   ` Peter Korsgaard
2020-02-19 18:48   ` Thomas Petazzoni
2020-02-19 20:33     ` Thomas De Schampheleire
2020-02-19 21:34       ` Peter Korsgaard [this message]
2020-02-20  6:31         ` Thomas De Schampheleire
2020-02-20  7:03           ` Peter Korsgaard
2020-02-20 10:26       ` Titouan Christophe
2020-02-20 11:42         ` Peter Korsgaard
2020-02-15 12:44 ` [Buildroot] [PATCH v3 2/2] docs/manual: describe the new <pkg>_IGNORE_CVES variable Titouan Christophe
2020-02-15 15:50   ` Peter Korsgaard

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