Ceph » CephFS

# ./bin/ceph tell mds.a heap start_profiler
*** DEVELOPER MODE: setting PATH, PYTHONPATH and LD_LIBRARY_PATH ***
2021-04-20T13:37:44.498+0800 15469a93e700 -1 WARNING: all dangerous and experimental features are enabled.
2021-04-20T13:37:44.530+0800 15469a93e700 -1 WARNING: all dangerous and experimental features are enabled.
2021-04-20T13:37:44.581+0800 15466acff700  0 client.9518 ms_handle_reset on v1:10.72.47.117:6813/3316220244
2021-04-20T13:37:44.643+0800 15466b101700  0 client.10017 ms_handle_reset on v1:10.72.47.117:6813/3316220244
Error ENOSYS: mds.a started profiler

# ./bin/ceph tell mds.a heap stats
*** DEVELOPER MODE: setting PATH, PYTHONPATH and LD_LIBRARY_PATH ***
2021-04-20T13:37:50.216+0800 151d9c6c0700 -1 WARNING: all dangerous and experimental features are enabled.
2021-04-20T13:37:50.252+0800 151d9c6c0700 -1 WARNING: all dangerous and experimental features are enabled.
2021-04-20T13:37:50.332+0800 151d94a07700  0 client.10026 ms_handle_reset on v1:10.72.47.117:6813/3316220244
2021-04-20T13:37:50.395+0800 151d94e09700  0 client.10032 ms_handle_reset on v1:10.72.47.117:6813/3316220244
Error ENOSYS: mds.a tcmalloc heap stats:------------------------------------------------
MALLOC:       80981936 (   77.2 MiB) Bytes in use by application
MALLOC: +       909312 (    0.9 MiB) Bytes in page heap freelist
MALLOC: +       310872 (    0.3 MiB) Bytes in central cache freelist
MALLOC: +       507392 (    0.5 MiB) Bytes in transfer cache freelist
MALLOC: +       529400 (    0.5 MiB) Bytes in thread cache freelists
MALLOC: +      2752512 (    2.6 MiB) Bytes in malloc metadata
MALLOC:   ------------
MALLOC: =     85991424 (   82.0 MiB) Actual memory used (physical + swap)
MALLOC: +            0 (    0.0 MiB) Bytes released to OS (aka unmapped)
MALLOC:   ------------
MALLOC: =     85991424 (   82.0 MiB) Virtual address space used
MALLOC:
MALLOC:            237              Spans in use
MALLOC:             15              Thread heaps in use
MALLOC:           8192              Tcmalloc page size
------------------------------------------------
Call ReleaseFreeMemory() to release freelist memory to the OS (via madvise()).
Bytes released to the OS take up virtual address space but no physical memory.