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and/or emails, per minute) for Subscription licence, or 1000ppm for Perpetual licence.
Additional Performance Packs increase this quota.
The number of engines that are allowed to operate in parallel to create the same type of output
are referred to as speed units. PrintShop Mail Connect provides 1 speed unit (with both
licence types).
It is important to note that only output operations are limited by this quota.
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The Weaver engine always requires a speed unit to run.
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A Merge engine only requires a speed unit when creating Email output.
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The Datamapper engine doesn't need a speed unit.
Merge engines involved in a Print operation don't need a speed unit in order to run. It is therefor
possible to launch multiple Merge engines, which in most situations increases PrintShop Mail
Connect's performance.
Number of Merge engines
When first installed, PrintShop Mail Connect is configured to use 1 Merge engine. A Merge
engine will run mostly single-threaded. To benefit from modern multi-core systems it is
recommended that several Merge engines run in parallel.
As a rule of thumb, you will want to run as many Merge engines as the system has cores. The
print statistics message dialog shows both the number of Merge engines and cores. However,
modern hardware typically has both full cores and hyper-threading or logical cores. Both are
counted as cores in this dialog, but the logical cores should not be counted as a full core when
determining how many Merge engines to use. As a guide, count logical cores for only 25%-50%
of a full core.
For example: on an Intel i7 CPU that comes with 4 cores and 4 additional hyper-threading
cores, Windows Task Manager will show 4 cores and 8 logical processors on its performance
tab. On a CPU like this, 5 or 6 Merge engines can be configured to run in parallel.
It is advised that you do not configure more engines than can be backed by actual processing
power . This adds overhead while not adding processing power.
To configure the number of Merge engines:
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