From: David Newall <davidn-KzQzY1MbaKjAHznzqCTclw@public.gmane.org>
To: Evgeniy Polyakov <zbr-i6C2adt8DTjR7s880joybQ@public.gmane.org>
Cc: Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
john-jueV0HHMeujJJrXXpGQQMAC/G2K4zDHf@public.gmane.org,
arnd-r2nGTMty4D4@public.gmane.org,
mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
hch-jcswGhMUV9g@public.gmane.org,
rlove-L7G0xEPcOZbYtjvyW6yDsg@public.gmane.org,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
pavel-AlSwsSmVLrQ@public.gmane.org,
Eric Paris <eparis-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: [take2] Inotify: nested attributes support.
Date: Wed, 26 Nov 2008 23:33:35 +1030 [thread overview]
Message-ID: <492D4927.8040204@davidnewall.com> (raw)
In-Reply-To: <20081126125113.GA8921-i6C2adt8DTjR7s880joybQ@public.gmane.org>
Evgeniy Polyakov wrote:
> On Wed, Nov 26, 2008 at 11:17:28PM +1030, David Newall (davidn-KzQzY1MbaKjAHznzqCTclw@public.gmane.org) wrote:
>
>> I don't think so. As discussed,
>> (http://marc.info/?l=linux-kernel&m=122735413932519), you already can
>> differentiate I/O made by local users, so you don't need to modify inotify.
>>
>
> And as was shown it does not work for all cases and introduces unneded
> performance overhead.
>
If the performance using a local loopback is insufficient, or even when
using a UNIX domain socket, then it's going to be even worse for the
actual network-connected clients. And the cases were it doesn't work
amount to poor system administration, which is a solvable problem.
>> This change violates my first rule of programming: If there's two or
>> more ways of solving a problem, pick one; don't pick them all.
>>
>
> Then we should go back to caves, raw meat was so tasty...
Amusing, but irrelevant to programming.
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WARNING: multiple messages have this Message-ID (diff)
From: David Newall <davidn@davidnewall.com>
To: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
john@johnmccutchan.com, arnd@arndb.de, mtk.manpages@gmail.com,
hch@lst.de, rlove@rlove.org, linux-api@vger.kernel.org,
linux-kernel@vger.kernel.org, pavel@suse.cz,
Eric Paris <eparis@redhat.com>
Subject: Re: [take2] Inotify: nested attributes support.
Date: Wed, 26 Nov 2008 23:33:35 +1030 [thread overview]
Message-ID: <492D4927.8040204@davidnewall.com> (raw)
In-Reply-To: <20081126125113.GA8921@ioremap.net>
Evgeniy Polyakov wrote:
> On Wed, Nov 26, 2008 at 11:17:28PM +1030, David Newall (davidn@davidnewall.com) wrote:
>
>> I don't think so. As discussed,
>> (http://marc.info/?l=linux-kernel&m=122735413932519), you already can
>> differentiate I/O made by local users, so you don't need to modify inotify.
>>
>
> And as was shown it does not work for all cases and introduces unneded
> performance overhead.
>
If the performance using a local loopback is insufficient, or even when
using a UNIX domain socket, then it's going to be even worse for the
actual network-connected clients. And the cases were it doesn't work
amount to poor system administration, which is a solvable problem.
>> This change violates my first rule of programming: If there's two or
>> more ways of solving a problem, pick one; don't pick them all.
>>
>
> Then we should go back to caves, raw meat was so tasty...
Amusing, but irrelevant to programming.
next prev parent reply other threads:[~2008-11-26 13:03 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-25 19:42 [take2] Inotify: nested attributes support Evgeniy Polyakov
2008-11-25 19:42 ` Evgeniy Polyakov
[not found] ` <20081125194234.GA24449-i6C2adt8DTjR7s880joybQ@public.gmane.org>
2008-11-25 19:44 ` [take2] Inotify: nested attributes test application Evgeniy Polyakov
2008-11-25 19:44 ` Evgeniy Polyakov
2008-11-26 0:24 ` [take2] Inotify: nested attributes support Andrew Morton
2008-11-26 0:24 ` Andrew Morton
[not found] ` <20081125162434.4feacbbf.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2008-11-26 7:42 ` Evgeniy Polyakov
2008-11-26 7:42 ` Evgeniy Polyakov
[not found] ` <20081126074239.GA17525-i6C2adt8DTjR7s880joybQ@public.gmane.org>
2008-11-26 8:15 ` Andrew Morton
2008-11-26 8:15 ` Andrew Morton
[not found] ` <20081126001538.4b1c7c99.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2008-11-26 8:29 ` Evgeniy Polyakov
2008-11-26 8:29 ` Evgeniy Polyakov
[not found] ` <20081126082936.GB17525-i6C2adt8DTjR7s880joybQ@public.gmane.org>
2008-11-26 8:38 ` Andrew Morton
2008-11-26 8:38 ` Andrew Morton
[not found] ` <20081126003825.2b9a92be.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2008-11-26 8:46 ` Evgeniy Polyakov
2008-11-26 8:46 ` Evgeniy Polyakov
2008-11-26 12:47 ` David Newall
2008-11-26 12:47 ` David Newall
[not found] ` <492D4560.8000302-KzQzY1MbaKjAHznzqCTclw@public.gmane.org>
2008-11-26 12:51 ` Evgeniy Polyakov
2008-11-26 12:51 ` Evgeniy Polyakov
[not found] ` <20081126125113.GA8921-i6C2adt8DTjR7s880joybQ@public.gmane.org>
2008-11-26 13:03 ` David Newall [this message]
2008-11-26 13:03 ` David Newall
[not found] ` <492D4927.8040204-KzQzY1MbaKjAHznzqCTclw@public.gmane.org>
2008-11-26 13:15 ` Evgeniy Polyakov
2008-11-26 13:15 ` Evgeniy Polyakov
2008-12-04 8:43 ` Pavel Machek
[not found] ` <20081204084309.GA2072-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org>
2008-12-04 9:09 ` Evgeniy Polyakov
2008-12-04 9:09 ` Evgeniy Polyakov
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