mnt/src/node-v0.11.0/out/Release/node node:gc_done mnt/src/node-v0.11.0/out/Release/node node:gc_start bcc includes tools for other file system types as well: btrfs, XFS, and ZFS. This is great for analyzing outliers, or quickly exonerating the storage subsystem as a source of latency. In this example, only operations > 1 ms were printed. This traces common ext4 file system operations, times them in kernel context, and only prints events slower than a configurable threshold.
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