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authorPaul Vinciguerra <pvinci@vinciconsulting.com>2019-10-27 17:28:10 -0400
committerDave Barach <openvpp@barachs.net>2019-10-28 13:51:13 +0000
commit7fa3dd2881be537ec6144850064ad1419dc12f3e (patch)
tree7fa013d6e23f16f73b0ca97628c1374a009b49bd /docs/overview/whatisvpp/what-is-vector-packet-processing.rst
parent3b5e222f8a4d0ccd4ec4eace2551491f13de85d9 (diff)
docs: cleanup typos on readthrough
Type: style Change-Id: I3b15035ea6c13cd1ca3cdc9dfa9b10a6e1be9880 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
Diffstat (limited to 'docs/overview/whatisvpp/what-is-vector-packet-processing.rst')
-rw-r--r--docs/overview/whatisvpp/what-is-vector-packet-processing.rst12
1 files changed, 6 insertions, 6 deletions
diff --git a/docs/overview/whatisvpp/what-is-vector-packet-processing.rst b/docs/overview/whatisvpp/what-is-vector-packet-processing.rst
index 994318e81c5..50a5bab8af1 100644
--- a/docs/overview/whatisvpp/what-is-vector-packet-processing.rst
+++ b/docs/overview/whatisvpp/what-is-vector-packet-processing.rst
@@ -13,7 +13,7 @@ Vector packet processing is a common approach among high performance `Userspace
<https://en.wikipedia.org/wiki/User_space>`_ packet processing applications such
as developed with FD.io VPP and `DPDK
<https://en.wikipedia.org/wiki/Data_Plane_Development_Kit>`_. The scalar based
-aproach tends to be favoured by Operating System `Kernel
+approach tends to be favoured by Operating System `Kernel
<https://en.wikipedia.org/wiki/Kernel_(operating_system)>`_ Network Stacks and
Userspace stacks that don't have strict performance requirements.
@@ -21,7 +21,7 @@ Userspace stacks that don't have strict performance requirements.
A scalar packet processing network stack typically processes one packet at a
time: an interrupt handling function takes a single packet from a Network
-Inteface, and processes it through a set of functions: fooA calls fooB calls
+Interface, and processes it through a set of functions: fooA calls fooB calls
fooC and so on.
.. code-block:: none
@@ -32,7 +32,7 @@ fooC and so on.
+---> fooA(packet3) +---> fooB(packet3) +---> fooC(packet3)
-Scalar packet processing is simple, but inefficent in these ways:
+Scalar packet processing is simple, but inefficient in these ways:
* When the code path length exceeds the size of the Microprocessor's instruction
cache (I-cache), `thrashing
@@ -46,7 +46,7 @@ Scalar packet processing is simple, but inefficent in these ways:
In contrast, a vector packet processing network stack processes multiple packets
at a time, called 'vectors of packets' or simply a 'vector'. An interrupt
-handling function takes the vector of packets from a Network Inteface, and
+handling function takes the vector of packets from a Network Interface, and
processes the vector through a set of functions: fooA calls fooB calls fooC and
so on.
@@ -59,10 +59,10 @@ so on.
This approach fixes:
-* The I-cache thrashing problem described above, by ammoritizing the cost of
+* The I-cache thrashing problem described above, by amortizing the cost of
I-cache loads across multiple packets.
-* The ineffeciences associated with the deep call stack by recieving vectors
+* The inefficiencies associated with the deep call stack by receiving vectors
of up to 256 packets at a time from the Network Interface, and processes them
using a directed graph of node. The graph scheduler invokes one node dispatch
function at a time, restricting stack depth to a few stack frames.