From: Jonathan Tan <jonathantanmy@google.com>
To: Jameson Miller <jamill@microsoft.com>
Cc: "git@vger.kernel.org" <git@vger.kernel.org>,
"gitster@pobox.com" <gitster@pobox.com>,
"pclouds@gmail.com" <pclouds@gmail.com>
Subject: Re: [PATCH v1 3/5] mem-pool: fill out functionality
Date: Fri, 20 Apr 2018 16:21:36 -0700 [thread overview]
Message-ID: <20180420162136.144ac5529072f22067abb3b9@google.com> (raw)
In-Reply-To: <20180417163400.3875-5-jamill@microsoft.com>
On Tue, 17 Apr 2018 16:34:42 +0000
Jameson Miller <jamill@microsoft.com> wrote:
> @@ -19,8 +19,27 @@ struct mem_pool {
>
> /* The total amount of memory allocated by the pool. */
> size_t pool_alloc;
> +
> + /*
> + * Array of pointers to "custom size" memory allocations.
> + * This is used for "large" memory allocations.
> + * The *_end variables are used to track the range of memory
> + * allocated.
> + */
> + void **custom, **custom_end;
> + int nr, nr_end, alloc, alloc_end;
This seems overly complicated - the struct mem_pool already has a linked
list of pages, so couldn't you create a custom page and insert it behind
the current front page instead whenever you needed a large-size page?
Also, when combining, there could be some wasted space on one of the
pages. I'm not sure if that's worth calling out, though.
next prev parent reply other threads:[~2018-04-20 23:21 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 16:34 [PATCH v1 0/5] Allocate cache entries from memory pool Jameson Miller
2018-04-17 16:34 ` Jameson Miller
2018-04-17 16:34 ` [PATCH v1 1/5] read-cache: teach refresh_cache_entry to take istate Jameson Miller
2018-04-17 19:00 ` Ben Peart
2018-04-17 16:34 ` [PATCH v1 2/5] Add an API creating / discarding cache_entry structs Jameson Miller
2018-04-17 23:11 ` Ben Peart
2018-04-17 16:34 ` [PATCH v1 3/5] mem-pool: fill out functionality Jameson Miller
2018-04-20 23:21 ` Jonathan Tan [this message]
2018-04-23 17:27 ` Jameson Miller
2018-04-23 17:49 ` Jonathan Tan
2018-04-23 18:20 ` Jameson Miller
2018-04-17 16:34 ` [PATCH v1 4/5] Allocate cache entries from memory pools Jameson Miller
2018-04-17 16:34 ` [PATCH v1 5/5] Add optional memory validations around cache_entry lifecyle Jameson Miller
2018-04-17 18:39 ` [PATCH v1 0/5] Allocate cache entries from memory pool Ben Peart
2018-04-23 14:09 ` Jameson Miller
2018-04-18 4:49 ` Junio C Hamano
2018-04-20 17:49 ` Stefan Beller
2018-04-23 16:44 ` Jameson Miller
2018-04-23 17:18 ` Stefan Beller
2018-04-23 16:19 ` Jameson Miller
2018-04-20 23:34 ` Jonathan Tan
2018-04-23 17:14 ` Jameson Miller
2018-04-30 15:31 ` [PATCH v2 " Jameson Miller
2018-04-30 15:31 ` [PATCH v2 1/5] read-cache: teach refresh_cache_entry() to take istate Jameson Miller
2018-04-30 15:31 ` [PATCH v2 2/5] block alloc: add lifecycle APIs for cache_entry structs Jameson Miller
2018-04-30 15:31 ` [PATCH v2 3/5] mem-pool: fill out functionality Jameson Miller
2018-04-30 21:42 ` Stefan Beller
2018-05-01 15:43 ` Jameson Miller
2018-05-03 16:18 ` Duy Nguyen
2018-04-30 15:31 ` [PATCH v2 4/5] block alloc: allocate cache entries from mem_pool Jameson Miller
2018-04-30 15:31 ` [PATCH v2 5/5] block alloc: add validations around cache_entry lifecyle Jameson Miller
2018-05-03 16:28 ` Duy Nguyen
2018-05-03 16:35 ` [PATCH v2 0/5] Allocate cache entries from memory pool Duy Nguyen
2018-05-03 17:21 ` Stefan Beller
2018-05-03 19:17 ` Duy Nguyen
2018-05-03 20:58 ` Stefan Beller
2018-05-03 21:13 ` Jameson Miller
2018-05-03 22:18 ` [PATCH] alloc.c: replace alloc by mempool Stefan Beller
2018-05-04 16:33 ` Duy Nguyen
2018-05-08 0:37 ` Junio C Hamano
2018-05-08 0:44 ` Stefan Beller
2018-05-08 1:07 ` Junio C Hamano
2018-05-23 14:47 ` [PATCH v3 0/7] allocate cache entries from memory pool Jameson Miller
2018-05-23 14:47 ` [PATCH v3 1/7] read-cache: teach refresh_cache_entry() to take istate Jameson Miller
2018-05-25 22:54 ` Stefan Beller
2018-05-23 14:47 ` [PATCH v3 2/7] block alloc: add lifecycle APIs for cache_entry structs Jameson Miller
2018-05-24 4:52 ` Junio C Hamano
2018-05-24 14:47 ` Jameson Miller
2018-05-23 14:47 ` [PATCH v3 3/7] mem-pool: only search head block for available space Jameson Miller
2018-05-23 14:47 ` [PATCH v3 4/7] mem-pool: add lifecycle management functions Jameson Miller
2018-05-23 14:47 ` [PATCH v3 5/7] mem-pool: fill out functionality Jameson Miller
2018-06-01 19:28 ` Stefan Beller
2018-05-23 14:47 ` [PATCH v3 6/7] block alloc: allocate cache entries from mem_pool Jameson Miller
2018-05-23 14:47 ` [PATCH v3 7/7] block alloc: add validations around cache_entry lifecyle Jameson Miller
2018-05-24 4:55 ` [PATCH v3 0/7] allocate cache entries from memory pool Junio C Hamano
2018-05-24 14:44 ` Jameson Miller
2018-05-25 22:53 ` Stefan Beller
2018-06-20 20:41 ` Jameson Miller
2018-05-25 22:41 ` Stefan Beller
2018-06-20 20:17 ` [PATCH v4 0/8] Allocate cache entries from mem_pool Jameson Miller
2018-06-20 20:17 ` [PATCH v4 1/8] read-cache: teach refresh_cache_entry() to take istate Jameson Miller
2018-06-20 20:17 ` [PATCH v4 2/8] block alloc: add lifecycle APIs for cache_entry structs Jameson Miller
2018-06-21 21:14 ` Stefan Beller
2018-06-28 14:07 ` Jameson Miller
2018-06-20 20:17 ` [PATCH v4 3/8] mem-pool: only search head block for available space Jameson Miller
2018-06-21 21:33 ` Stefan Beller
2018-06-28 14:12 ` Jameson Miller
2018-06-20 20:17 ` [PATCH v4 4/8] mem-pool: tweak math on mp_block allocation size Jameson Miller
2018-06-20 20:17 ` [PATCH v4 5/8] mem-pool: add lifecycle management functions Jameson Miller
2018-06-20 20:17 ` [PATCH v4 6/8] mem-pool: fill out functionality Jameson Miller
2018-06-20 20:17 ` [PATCH v4 7/8] block alloc: allocate cache entries from mem_pool Jameson Miller
2018-06-20 20:17 ` [PATCH v4 8/8] block alloc: add validations around cache_entry lifecyle Jameson Miller
2018-06-28 14:00 ` [PATCH v5 0/8] Allocate cache entries from mem_pool Jameson Miller
2018-06-28 14:00 ` [PATCH v5 1/8] read-cache: teach refresh_cache_entry() to take istate Jameson Miller
2018-06-28 14:00 ` [PATCH v5 2/8] read-cache: make_cache_entry should take object_id struct Jameson Miller
2018-06-28 17:14 ` Junio C Hamano
2018-06-28 22:27 ` SZEDER Gábor
2018-06-28 14:00 ` [PATCH v5 3/8] block alloc: add lifecycle APIs for cache_entry structs Jameson Miller
2018-06-28 18:43 ` Junio C Hamano
2018-06-28 22:28 ` SZEDER Gábor
2018-06-28 14:00 ` [PATCH v5 4/8] mem-pool: only search head block for available space Jameson Miller
2018-06-28 14:00 ` [PATCH v5 5/8] mem-pool: add life cycle management functions Jameson Miller
2018-06-28 17:15 ` Junio C Hamano
2018-06-28 14:00 ` [PATCH v5 6/8] mem-pool: fill out functionality Jameson Miller
2018-06-28 19:09 ` Junio C Hamano
2018-07-02 18:28 ` Jameson Miller
2018-06-28 14:00 ` [PATCH v5 7/8] block alloc: allocate cache entries from mem-pool Jameson Miller
2018-06-28 14:00 ` [PATCH v5 8/8] block alloc: add validations around cache_entry lifecyle Jameson Miller
2018-07-02 19:49 ` [PATCH v6 0/8] Allocate cache entries from mem_pool Jameson Miller
2018-07-02 19:49 ` [PATCH v6 1/8] read-cache: teach refresh_cache_entry to take istate Jameson Miller
2018-07-02 19:49 ` [PATCH v6 2/8] read-cache: teach make_cache_entry to take object_id Jameson Miller
2018-07-02 21:23 ` Stefan Beller
2018-07-05 15:20 ` Jameson Miller
2018-07-02 19:49 ` [PATCH v6 3/8] block alloc: add lifecycle APIs for cache_entry structs Jameson Miller
2018-07-22 9:23 ` Duy Nguyen
2018-07-02 19:49 ` [PATCH v6 4/8] mem-pool: only search head block for available space Jameson Miller
2018-07-02 19:49 ` [PATCH v6 5/8] mem-pool: add life cycle management functions Jameson Miller
2018-07-02 19:49 ` [PATCH v6 6/8] mem-pool: fill out functionality Jameson Miller
2018-07-02 19:49 ` [PATCH v6 7/8] block alloc: allocate cache entries from mem_pool Jameson Miller
2018-07-02 19:49 ` [PATCH v6 8/8] block alloc: add validations around cache_entry lifecyle Jameson Miller
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