Computer system for managing I/O metric information by identifying one or more outliers and comparing set of aggregated I/O metrics

A system comprising:

• an input/output (I/O) metric service, executed on one or more computing devices, the I/O metric service configured to:
• collect a set of I/O metrics for each of a plurality of I/O requests transmitted from a plurality of client computing devices via a communications network;
• assign a primary identifier to each of the plurality of I/O requests;
• associate one or more secondary identifiers with each primary identifier, wherein the one or more secondary identifiers each correspond to an I/O operation associated with fulfilling the I/O request of the primary identifier;
• create a set of aggregated I/O metrics for each primary identifier, based at least in part on the sets of I/O metrics for the associated secondary identifiers;
• identify one or more outliers from among the primary identifiers, wherein identifying the one or more outliers comprise:
• determining a threshold value based on a comparison of the set of aggregated I/O metrics for each primary identifier;
• and
• identifying an aggregated I/O metric in the set of aggregated I/O metrics for the primary identifier that have exceeded the threshold value as the one or more outliers;
• and
• write, to a ring buffer defining the maximum amount of I/O metric information to be held at once, I/O metric information including one or more of:
• the outlier;
• the set of aggregated I/O metrics corresponding to the outlier;
• the associated set of secondary identifiers;
• or
• the set of I/O metrics for each secondary identifier in the associated set of secondary identifiers.