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Update performance.md #232

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12 changes: 5 additions & 7 deletions docs/performance.md
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Original file line number Diff line number Diff line change
@@ -1,14 +1,12 @@
# Performace
# Performance

The two performance-related settings are "Download strategy",
which is a global setting,
and "Multi-fetch size", which is an Account-level setting.
The two performance-related settings are "Download strategy", which is a global setting, and "Multi-fetch size", which is an Account-level setting.

As with all performance tweaks, there are trade-offs.

# Overview

The defaults, which suit most machines and plays nice with servers is:
The defaults, which suit most machines and play nice with servers are:

* Download strategy: "delay writing metadata",
* Multi-fetch size: 1.
Expand All @@ -18,7 +16,7 @@ a small virtual server or Raspberry Pi
to run your backups, you can change "Download strategy".

If your email provider supports it,
and you don't have tight memeory limits,
and you don't have tight memory limits,
increase "Multi-fetch size" for faster backups.

# Delay download writes
Expand All @@ -45,7 +43,7 @@ By default, during backup, each message is downloaded one-by-one.
Using this setting, you can download chunks of emails at a time,
potentially speeding up the process.

Using multi-fetch *will* mean that the backup process will use
Using multi-fetch mean that the backup process *will* use
more memory - equivalent to the size of the groups of messages
that are downloaded.

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