From: Nulik Nol <nuliknol@gmail.com>
To: dev@dpdk.org
Subject: [dpdk-dev] About interrupts and packet loss
Date: Sun, 1 Sep 2013 02:01:43 -0500 [thread overview]
Message-ID: <CAHO6xe-Qy9ZQgnF8icYzxNocDX+Pfu_NfO9XtW09O0LhA6Miww@mail.gmail.com> (raw)
Hi,
I have read in a pdf document about DPDK that the driver that comes
within the DPDK distribution was modified to disable interrupt
handling. This explains why DPDK is so fast.
However , this means the app in user space must constantly watch for
new packets, so the CPU load average will be almost 100% all the time,
correct? Well, then what happens if the app executes a busy process
and at that time all RX rings get filled, will the incoming network
traffic be lost?
Thanks in advance
Nulik
next reply other threads:[~2013-09-01 7:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-01 7:01 Nulik Nol [this message]
2013-09-02 13:25 ` Thomas Monjalon
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