From: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
To: Lucas <lucascrijns@gmail.com>
Cc: users@dpdk.org
Subject: Re: Increase DPDK's virtual memory to more than 512 GiB
Date: Thu, 20 Feb 2025 17:55:05 +0300 [thread overview]
Message-ID: <20250220175505.5116b4e0@sovereign> (raw)
In-Reply-To: <CADTTPn8G453gJW4FPWOTU4Z8OvtG2g3fWUi1aexDnBzKkW1ceg@mail.gmail.com>
2025-02-20 15:19 (UTC+0100), Lucas:
> As for the issue, at 550 GB so 252'757'352 MBUFs (using default mbuf buf
> size), it works now, with ring allocation. However, the physical memory
> usage now goes up a lot and I end up swapping. It appears that not all
> memory is in hugepages (not all pages are filled) and that perhaps the
> kernel also allocates more memory. I have 755 GiB RAM available, so 600 GB
> of mempool is pushing it.
How is your system configured to reserve hugepages?
DPDK always allocates hugepages; if none are available, allocation fails.
Hugepages never swap AFAIK.
next prev parent reply other threads:[~2025-02-20 14:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-19 14:22 Lucas
2025-02-19 15:03 ` Stephen Hemminger
2025-02-19 22:28 ` Dmitry Kozlyuk
[not found] ` <CADTTPn-zDTotOsCsnkuEQiRDdEfuLGVDo1hmuXetgGLd+TTP6Q@mail.gmail.com>
2025-02-20 11:21 ` Dmitry Kozlyuk
2025-02-20 14:19 ` Lucas
2025-02-20 14:55 ` Dmitry Kozlyuk [this message]
2025-03-03 14:52 ` Lucas
2025-03-03 22:05 ` Dmitry Kozlyuk
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