netdev - Re: [PATCH] iptables: flush stdout after every verbose log.

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Message-ID: <20200428223006.GA30304@salvia>
Date:   Wed, 29 Apr 2020 00:30:06 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Maciej Żenczykowski <zenczykowski@...il.com>
Cc:     Florian Westphal <fw@...len.de>,
        Linux Network Development Mailing List 
        <netdev@...r.kernel.org>,
        Netfilter Development Mailing List 
        <netfilter-devel@...r.kernel.org>
Subject: Re: [PATCH] iptables: flush stdout after every verbose log.

On Mon, Apr 27, 2020 at 05:14:24PM -0700, Maciej Żenczykowski wrote:
> > Could you check if this slows down iptables-restore?
> 
> per the iptables-restore man page
>        -v, --verbose
>               Print additional debug info during ruleset processing.
> 
> Well, if you run it with verbose mode enabled you probably don't care
> about performance all that much...

Thanks for explaining.

How long has this been broken? I mean, netd has been there for quite a
while interacting with iptables. However, the existing behaviour was
not a problem? Or a recent bug?