Abstract: Methods and systems for generating an estimate of a bit error rate of a signal are provided. Methods and systems include obtaining an eye mask for a receiver, receiving a signal with the receiver, generating an eye mask probability density function of the eye mask, generating an eye diagram probability density function based on the signal, calculating a product of the eye mask probability density function and the eye diagram probability density function, summing the product of the eye mask probability density function and the eye diagram probability density function, and estimating the bit error rate of the signal based on the summing of the product of the eye mask probability density function and the eye diagram probability density function.

Abstract: Methods and systems for generating an estimate of a bit error rate of a signal are provided. Methods and systems include obtaining an eye mask for a receiver, receiving a signal with the receiver, generating an eye mask probability density function of the eye mask, generating an eye diagram probability density function based on the signal, calculating a product of the eye mask probability density function and the eye diagram probability density function, summing the product of the eye mask probability density function and the eye diagram probability density function, and estimating the bit error rate of the signal based on the summing of the product of the eye mask probability density function and the eye diagram probability density function.

Abstract: A method, schema, and computer-readable medium provide various means for load balancing computing devices in a multi-server environment. The method, schema, and computer-readable medium for load balancing computing devices in a multi-server environment may be utilized in a networked server environment, implementing a spreadsheet application for manipulating a workbook, for example. The method, schema, and computer-readable medium operate to load balance computing devices in a multi-server environment including determining whether a file, such as a spreadsheet application workbook, resides in the cache of a particular server, such as a calculation server. Upon meeting certain conditions, the user request may be directed to the particular server.