From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 10/10] block: Adjust cache sizes
Date: Thu, 31 May 2018 17:04:42 +0200 [thread overview]
Message-ID: <20180531150442.16208-11-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20180531150442.16208-1-s.hauer@pengutronix.de>
Use four times more cache entries and divide the memory for each entry
by four. This lowers the linear read throughput somewhat but increases
the access speed for filesystems.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
common/block.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/common/block.c b/common/block.c
index 55d8d1637e..219b943afc 100644
--- a/common/block.c
+++ b/common/block.c
@@ -36,7 +36,7 @@ struct chunk {
struct list_head list;
};
-#define BUFSIZE (PAGE_SIZE * 16)
+#define BUFSIZE (PAGE_SIZE * 4)
/*
* Write all dirty chunks back to the device
@@ -361,7 +361,7 @@ int blockdevice_register(struct block_device *blk)
debug("%s: rdbufsize: %d blockbits: %d blkmask: 0x%08x\n", __func__, blk->rdbufsize, blk->blockbits,
blk->blkmask);
- for (i = 0; i < 8; i++) {
+ for (i = 0; i < 32; i++) {
struct chunk *chunk = xzalloc(sizeof(*chunk));
chunk->data = dma_alloc(BUFSIZE);
chunk->num = i;
--
2.17.1
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
prev parent reply other threads:[~2018-05-31 15:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-31 15:04 [PATCH v2 00/10] dentry cache support Sascha Hauer
2018-05-31 15:04 ` [PATCH 01/10] fs: dentry cache implementation Sascha Hauer
2018-05-31 15:04 ` [PATCH 02/10] fs: ramfs: Switch to " Sascha Hauer
2018-05-31 15:04 ` [PATCH 03/10] fs: devfs: " Sascha Hauer
2018-05-31 15:04 ` [PATCH 04/10] fs: ext4: " Sascha Hauer
2018-05-31 15:04 ` [PATCH 05/10] fs: ubifs: " Sascha Hauer
2018-05-31 15:04 ` [PATCH 06/10] fs: nfs: " Sascha Hauer
2018-05-31 15:04 ` [PATCH 07/10] fs: tftp: " Sascha Hauer
2018-05-31 15:04 ` [PATCH 08/10] fs: cramfs: " Sascha Hauer
2018-05-31 15:04 ` [PATCH 09/10] fs: squashfs: " Sascha Hauer
2018-05-31 15:04 ` Sascha Hauer [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180531150442.16208-11-s.hauer@pengutronix.de \
--to=s.hauer@pengutronix.de \
--cc=barebox@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox