On 8/5/20 5:14 PM, Jonathan Adams wrote: > To try to restart the discussion of kernel statistics started by the > statsfs patchsets (https://lkml.org/lkml/2020/5/26/332), I wanted > to share the following set of patches which are Google's 'metricfs' > implementation and some example uses. Google has been using metricfs > internally since 2012 as a way to export various statistics to our > telemetry systems (similar to OpenTelemetry), and we have over 200 > statistics exported on a typical machine. > Hi, AFAIK all Linux filesystems (including pseudo/synthetic ones) live under fs/, not in kernel/. Therefore I think that this patch series needs more exposure, i.e., Cc: it to linux-fsdevel@xxxxxxxxxxxxxxx and netdev@xxxxxxxxxxxxxxx. oh, and to gregkh. > Jonathan Adams (5): > core/metricfs: add support for percpu metricfs files > core/metricfs: metric for kernel warnings > core/metricfs: expose softirq information through metricfs > core/metricfs: expose scheduler stat information through metricfs > core/metricfs: expose x86-specific irq information through metricfs > > Justin TerAvest (1): > core/metricfs: Create metricfs, standardized files under debugfs. > > Laurent Chavey (1): > net-metricfs: Export /proc/net/dev via metricfs. > > arch/x86/kernel/irq.c | 80 ++++ > fs/proc/stat.c | 57 +++ > include/linux/metricfs.h | 131 +++++++ > kernel/Makefile | 2 + > kernel/metricfs.c | 775 +++++++++++++++++++++++++++++++++++++ > kernel/metricfs_examples.c | 151 ++++++++ > kernel/panic.c | 131 +++++++ > kernel/softirq.c | 45 +++ > lib/Kconfig.debug | 18 + > net/core/Makefile | 1 + > net/core/net_metricfs.c | 194 ++++++++++ > 11 files changed, 1585 insertions(+) > create mode 100644 include/linux/metricfs.h > create mode 100644 kernel/metricfs.c > create mode 100644 kernel/metricfs_examples.c > create mode 100644 net/core/net_metricfs.c thanks. -- ~Randy
