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✏️ /usr/share/doc/bpfcc-tools/examples/tracing/bitehist_example.txt

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Demonstrations of bitehist.py, the Linux eBPF/bcc version.

This prints a power-of-2 histogram to show the block I/O size distribution.
A summary is printed after Ctrl-C is hit.

# ./bitehist.py
Tracing... Hit Ctrl-C to end.
^C
     kbytes          : count     distribution
       0 -> 1        : 3        |                                      |
       2 -> 3        : 0        |                                      |
       4 -> 7        : 211      |**********                            |
       8 -> 15       : 0        |                                      |
      16 -> 31       : 0        |                                      |
      32 -> 63       : 0        |                                      |
      64 -> 127      : 1        |                                      |
     128 -> 255      : 800      |**************************************|

This output shows a bimodal distribution. The largest mod of 800 I/O were
between 128 and 255 Kbytes in size, and another mode of 211 I/O were between
4 and 7 Kbytes in size.

Understanding this distribution is useful for characterizing workloads and
understanding performance. The existence of this distribution is not visible
from averages alone.

Batal

⬅ examples 42 item

Nama	Tipe	Ukuran	Diubah	Perm	Aksi
📝 CMakeLists.txt	txt	276 B	08/12/23 15:36	0644	✏️ ⬇
🐍 biolatpcts.py	py	3.2 KB	08/12/23 15:36	0755	✏️ ⬇
📝 biolatpcts_example.txt	txt	650 B	08/12/23 15:36	0644	✏️ ⬇
🐍 bitehist.py	py	1.4 KB	08/12/23 15:36	0755	✏️ ⬇
📝 bitehist_example.txt	txt	1.2 KB	08/12/23 15:36	0644	✏️ ⬇
🐍 dddos.py	py	3.7 KB	08/12/23 15:36	0755	✏️ ⬇
📝 dddos_example.txt	txt	2.1 KB	08/12/23 15:36	0644	✏️ ⬇
🐍 disksnoop.py	py	1.9 KB	08/12/23 15:36	0755	✏️ ⬇
📝 disksnoop_example.txt	txt	1.5 KB	08/12/23 15:36	0644	✏️ ⬇
🐍 hello_fields.py	py	679 B	08/12/23 15:36	0755	✏️ ⬇
🐍 hello_perf_output.py	py	1.2 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 hello_perf_output_using_ns.py	py	1.8 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 kvm_hypercall.py	py	1.5 KB	08/12/23 15:36	0755	✏️ ⬇
📝 kvm_hypercall.txt	txt	1.7 KB	08/12/23 15:36	0644	✏️ ⬇
🐍 mallocstacks.py	py	1.9 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 mysqld_query.py	py	1.7 KB	08/12/23 15:36	0755	✏️ ⬇
📝 mysqld_query_example.txt	txt	499 B	08/12/23 15:36	0644	✏️ ⬇
🐍 nflatency.py	py	6.1 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 nodejs_http_server.py	py	1.3 KB	08/12/23 15:36	0755	✏️ ⬇
📝 nodejs_http_server_example.txt	txt	276 B	08/12/23 15:36	0644	✏️ ⬇
🐍 stack_buildid_example.py	py	3 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 stacksnoop.py	py	3.2 KB	08/12/23 15:36	0755	✏️ ⬇
📝 stacksnoop_example.txt	txt	2.8 KB	08/12/23 15:36	0644	✏️ ⬇
🐍 strlen_count.py	py	1.3 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 strlen_hist.py	py	1.8 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 strlen_hist_ifunc.py	py	3.7 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 strlen_snoop.py	py	1.4 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 sync_timing.py	py	1.4 KB	08/12/23 15:36	0755	✏️ ⬇
📄 task_switch.c	c	499 B	08/12/23 15:36	0644	✏️ ⬇
🐍 task_switch.py	py	486 B	08/12/23 15:36	0755	✏️ ⬇
🐍 tcpv4connect.py	py	2.4 KB	08/12/23 15:36	0755	✏️ ⬇
📝 tcpv4connect_example.txt	txt	1 KB	08/12/23 15:36	0644	✏️ ⬇
🐍 trace_fields.py	py	589 B	08/12/23 15:36	0755	✏️ ⬇
🐍 trace_perf_output.py	py	1.6 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 undump.py	py	3.5 KB	08/12/23 15:36	0755	✏️ ⬇
📝 undump_example.txt	txt	886 B	08/12/23 15:36	0644	✏️ ⬇
🐍 urandomread-explicit.py	py	1.5 KB	08/12/23 15:36	0755	✏️ ⬇
🐍 urandomread.py	py	1 KB	08/12/23 15:36	0755	✏️ ⬇
📝 urandomread_example.txt	txt	675 B	08/12/23 15:36	0644	✏️ ⬇
📄 vfsreadlat.c	c	896 B	08/12/23 15:36	0644	✏️ ⬇
🐍 vfsreadlat.py	py	1.3 KB	08/12/23 15:36	0755	✏️ ⬇
📝 vfsreadlat_example.txt	txt	3.5 KB	08/12/23 15:36	0644	✏️ ⬇

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