From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <imun@tarantool.org>
Received: from smtpng2.m.smailru.net (smtpng2.m.smailru.net [94.100.179.3])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (No client certificate requested)
 by dev.tarantool.org (Postfix) with ESMTPS id 6D9F040F3AE
 for <tarantool-patches@dev.tarantool.org>;
 Wed, 10 Jun 2020 16:11:05 +0300 (MSK)
Date: Wed, 10 Jun 2020 16:01:55 +0300
From: Igor Munkin <imun@tarantool.org>
Message-ID: <20200610130155.GO5745@tarantool.org>
References: <20200518093748.16825-1-skaplun@tarantool.org>
 <20200610121506.74766b5p7mbupum2@tarantool.org>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <20200610121506.74766b5p7mbupum2@tarantool.org>
Subject: Re: [Tarantool-patches] [PATCH] lua: lua_field_inspect_table
 without pushcfunction
List-Id: Tarantool development patches <tarantool-patches.dev.tarantool.org>
List-Unsubscribe: <https://lists.tarantool.org/mailman/options/tarantool-patches>, 
 <mailto:tarantool-patches-request@dev.tarantool.org?subject=unsubscribe>
List-Archive: <https://lists.tarantool.org/pipermail/tarantool-patches/>
List-Post: <mailto:tarantool-patches@dev.tarantool.org>
List-Help: <mailto:tarantool-patches-request@dev.tarantool.org?subject=help>
List-Subscribe: <https://lists.tarantool.org/mailman/listinfo/tarantool-patches>, 
 <mailto:tarantool-patches-request@dev.tarantool.org?subject=subscribe>
To: Kirill Yukhin <kyukhin@tarantool.org>
Cc: tarantool-patches@dev.tarantool.org, Vladislav Shpilevoy <v.shpilevoy@tarantool.org>

Kirill,

On 10.06.20, Kirill Yukhin wrote:
> Hello,
> 
> On 18 май 12:37, Sergey Kaplun wrote:
> > Currently on encoding table we push cfunction (lua_field_try_serialize)
> > to lua stack with additional lightuserdata and table value and after
> > pcall that function to avoid a raise of error.
> > 
> > In this case LuaJIT creates new object which will not live long time,
> > so it increase amount of dead object and also increase time and
> > frequency of garbage collection inside LuaJIT.
> > Also this pcall is necessary only in case when metafield __serialize
> > of serilizable object has LUA_TFUNCTION type.
> > 
> > So instead pushcfunction with pcall we can directly call the function
> > trying to serialize an object.
> > ---
> > 
> > branch: https://github.com/tarantool/tarantool/tree/skaplun/no-ticket-lua-inspect-table-refactoring
> 
> I've checked your patch into master.

Just in case: you replied to v1 thread but the applied patch relates to v2.
I would like to mention that ChangeLog entry changes between versions.

> 
> --
> Regards, Kirill Yukhin

-- 
Best regards,
IM