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From: Sergey Kaplun <skaplun@tarantool.org>
To: Igor Munkin <imun@tarantool.org>
Cc: tarantool-patches@dev.tarantool.org
Subject: Re: [Tarantool-patches] [PATCH luajit v2 4/7] core: introduce new mem_L field
Date: Sun, 27 Dec 2020 20:44:09 +0300	[thread overview]
Message-ID: <20201227174409.GD14702@root> (raw)
In-Reply-To: <20201227130916.GJ5396@tarantool.org>

Igor,

Thanks for the review!

On 27.12.20, Igor Munkin wrote:
> Sergey,
> 
> Thanks for the patch! I guess this commit can be squashed with the
> following (introducing memprof engine), since <mem_L> field is added
> only to make it work. Also consider my comments below.
> 
> On 25.12.20, Sergey Kaplun wrote:
> > To determine currently allocating coroutine (that may not be equal to
> > currently executed one) a new field called mem_L is added to
> > global_State structure. This field is set on each allocation event and
> > stores the coroutine address that is used for allocation.
> > 
> > Part of tarantool/tarantool#5442
> > ---
> >  src/lj_gc.c  | 2 ++
> >  src/lj_obj.h | 1 +
> >  2 files changed, 3 insertions(+)
> > 
> > diff --git a/src/lj_gc.c b/src/lj_gc.c
> > index 44c8aa1..800fb2c 100644
> > --- a/src/lj_gc.c
> > +++ b/src/lj_gc.c
> > @@ -852,6 +852,8 @@ void *lj_mem_realloc(lua_State *L, void *p, GCSize osz, GCSize nsz)
> >  {
> >    global_State *g = G(L);
> >    lua_assert((osz == 0) == (p == NULL));
> > +
> > +  setgcref(g->mem_L, obj2gco(L));
> 
> This field is initialized only here. What about <lj_mem_newgco> and
> <lj_mem_free>? As for the latter the initialization is not necessary,
> since all deallocations are reported as internals (but the comment
> strongly required), but this assignment is definitely lost in the first
> routine.

I'll squash this patch with the next as you recommended and send
v3 for that patch (5/7) in the reply to the cover.

> 
> >    p = g->allocf(g->allocd, p, osz, nsz);
> >    if (p == NULL && nsz > 0)
> >      lj_err_mem(L);
> 
> <snipped>
> 
> > -- 
> > 2.28.0
> > 
> 
> -- 
> Best regards,
> IM

-- 
Best regards,
Sergey Kaplun

  reply	other threads:[~2020-12-27 17:44 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-25 15:26 [Tarantool-patches] [PATCH luajit v2 0/7] LuaJIT memory profiler Sergey Kaplun
2020-12-25 15:26 ` [Tarantool-patches] [PATCH luajit v2 1/7] utils: introduce leb128 reader and writer Sergey Kaplun
2020-12-25 21:42   ` Igor Munkin
2020-12-26  9:32     ` Sergey Kaplun
2020-12-26 13:57       ` Sergey Kaplun
2020-12-26 18:47         ` Sergey Ostanevich
2020-12-25 15:26 ` [Tarantool-patches] [PATCH luajit v2 2/7] core: introduce write buffer module Sergey Kaplun
2020-12-26 14:22   ` Igor Munkin
2020-12-26 15:26     ` Sergey Kaplun
2020-12-26 19:03       ` Sergey Ostanevich
2020-12-26 19:37         ` Sergey Kaplun
2020-12-28  1:43           ` Sergey Kaplun
2020-12-25 15:26 ` [Tarantool-patches] [PATCH luajit v2 3/7] vm: introduce VM states for Lua and fast functions Sergey Kaplun
2020-12-26 19:07   ` Sergey Ostanevich
2020-12-27 23:48   ` Igor Munkin
2020-12-28  3:54     ` Sergey Kaplun
2020-12-25 15:26 ` [Tarantool-patches] [PATCH luajit v2 4/7] core: introduce new mem_L field Sergey Kaplun
2020-12-26 19:12   ` Sergey Ostanevich
2020-12-26 19:42     ` Sergey Kaplun
2020-12-27 13:09   ` Igor Munkin
2020-12-27 17:44     ` Sergey Kaplun [this message]
2020-12-25 15:26 ` [Tarantool-patches] [PATCH luajit v2 5/7] core: introduce memory profiler Sergey Kaplun
2020-12-27 10:58   ` Sergey Ostanevich
2020-12-27 11:54     ` Sergey Kaplun
2020-12-27 13:27       ` Sergey Ostanevich
2020-12-27 16:44   ` Igor Munkin
2020-12-27 21:47     ` Sergey Kaplun
2020-12-25 15:26 ` [Tarantool-patches] [PATCH luajit v2 6/7] misc: add Lua API for " Sergey Kaplun
2020-12-27 11:54   ` Sergey Ostanevich
2020-12-27 13:42     ` Sergey Kaplun
2020-12-27 15:37       ` Sergey Ostanevich
2020-12-27 18:58   ` Igor Munkin
2020-12-28  0:14     ` Sergey Kaplun
2020-12-25 15:26 ` [Tarantool-patches] [PATCH luajit v2 7/7] tools: introduce a memory profile parser Sergey Kaplun
2020-12-26 22:56   ` Igor Munkin
2020-12-27  7:16     ` Sergey Kaplun
2020-12-28  5:30       ` Sergey Kaplun
2020-12-28  5:33         ` Igor Munkin
2020-12-28  6:28           ` Sergey Kaplun
2020-12-28  6:31             ` Igor Munkin
2020-12-27 13:24   ` Sergey Ostanevich
2020-12-27 16:02     ` Sergey Kaplun
2020-12-27 21:55       ` Sergey Ostanevich
2020-12-28  2:05 ` [Tarantool-patches] [PATCH luajit v3 2/2] misc: add Lua API for memory profiler Sergey Kaplun
2020-12-28  2:49   ` Igor Munkin
2020-12-28  5:19     ` Sergey Kaplun
2020-12-28  2:06 ` [Tarantool-patches] [PATCH luajit v3 1/2] core: introduce " Sergey Kaplun
2020-12-28  3:59   ` Igor Munkin
2020-12-28  4:05 ` [Tarantool-patches] [PATCH luajit v3 3/7] vm: introduce VM states for Lua and fast functions Sergey Kaplun
2020-12-28  5:14   ` Igor Munkin
2020-12-28  6:01 ` [Tarantool-patches] [PATCH luajit v2 0/7] LuaJIT memory profiler Alexander V. Tikhonov
2020-12-28  8:15 ` Igor Munkin

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