From: David Aldrich <david.aldrich.ntml@gmail.com>
To: users <users@dpdk.org>
Subject: [dpdk-users] Basic hugepages question
Date: Wed, 9 Dec 2020 16:34:29 +0000 [thread overview]
Message-ID: <CAJK_iehq4qKvFeyTa5WR6Bb37NO8M-w_wdRmfi6Gwv_oMNvfsQ@mail.gmail.com> (raw)
Hi
Having successfully demonstrated using dpdk with our application, it's been
pointed out to me that our settings are using a very large amount of memory.
I am initialising the EAL with:
-m 16000
i.e. 16GB!
However, I am only specifying a count of 0x4000 to rte_ring_create(), which
I call twice to create one Rx and one Tx ring. So I guess these are only
using 32MB RAM total.
My questions are:
1) What would be a sensible amount of memory to specify with the '-m'
parameter to the EAL?
2) What size / number of hugepages should I allocate in Linux?
(I currently use boot parameters: 'hugepagesz=1G hugepages=20 hugepagesz=2M
hugepages=0').
Best regards
David
next reply other threads:[~2020-12-09 16:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-09 16:34 David Aldrich [this message]
2020-12-09 16:59 ` Stephen Hemminger
2020-12-09 18:30 ` David Aldrich
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