3 Commits (f1def04193c791e4bafc04f94ac2377630fddb98)

Author	SHA1	Message	Date
Ben Kochie	c6162312f2	Add Linux NUMA "numastat" metrics (#249) ... * Add Linux NUMA "numastat" metrics Read the `numastat` metrics from /sys/devices/system/node/node* when reading NUMA meminfo metrics. * Update end-to-end test output. * Add `numastat` metrics as counters. * Add tests for error conditions. * Refactor meminfo numa metrics struct * Refactor meminfoKey into a simple struct of metric data. This makes it easier to pass slices of metrics around. * Refactor tests. * Fixup: Add suggested fixes. * Fixup: More fixes * Add another scanner.Err() return * Add "_total" to counter metrics.	8 years ago
Pavel Borzenkov	5a085dcaf5	meminfo_numa: fix crash on CentOS 6 kernel ... It turns out, on some kernels (notably - CentOS6) there is an empty line inserted at the beginning of /sys/devices/system/node/node*/meminfo files. The leads to node_exporter crash on such kernels. Fix this by checking for empty string first. Signed-off-by: Pavel Borzenkov <pavel.borzenkov@gmail.com>	9 years ago
Pavel Borzenkov	c12d8ea927	Add new per NUMA node memory statistics collector ... It is sometimes useful to understand the distribution of free/occupied memory between NUMA nodes to deal with performance problems. To do so, add new meminfo_numa collector that enables exporting of per node statistics along with unit and end-to-end tests for it. Signed-off-by: Pavel Borzenkov <pavel.borzenkov@gmail.com>	9 years ago