Encore SIM EDITOR SOFTWARE User's Guide download pdf (Page 416)

100

101

17-32

VCD+ (vpd) File Generation

Performance Tips

The following tips explain how to manage performance of the

simulator and VCD+.

• Normally you should save data for all signals that you may require

for analysis. The time range should be such that it very likely

contains the origination of the problem.

• Generally, the bigger you make the RAM buffer size (via the

+vpdbufsize option), the faster the simulation will complete.

The effects are so dependent on circuit and activity that

rules-of-thumb do not apply. We suggest doubling the RAM size

for the same simulation on your own design while measuring

simulator performance to get a figure for an appropriate setting.

When making this measurement, compare sizeable simulation

runs to overcome the effects of compile time. Naturally, the above

requires that you have physical memory to accommodate the

simulation. Swapping will significantly reduce performance.

Making the buffer size too large can cause excessive swapping,

which can dramatically slow the simulation.

• Saving line-execution data enables more efficient debug of

misbehavior in behavioral code. Access to such data allows

breakpointing on particular activities in the code and stepping

through the exact execution of the source. Correctly used, the cost

of reporting on line execution data (slower simulation) will more

than pay for itself by enabling much faster location of the code

deficiencies

1 2 ... 411 412 413 414 415 416 417 418 419 420 421 ... 448 449

Comments to this Manuals

No comments

Encore SIM EDITOR SOFTWARE User's Guide Page 416

Comments to this Manuals

Related products and manuals for Software Encore SIM EDITOR SOFTWARE