elfuse real-workload syscall frequency ranking (Top 50)

[maxliu04002]

• Counts are guest syscalls actually handled by the host dispatcher.

Workloads (five categories, 116 guest processes)

workload	image	content	syscalls	processes
jvm	eclipse-temurin:21	javac compile of a multi-class program + java run (collections, file I/O, SHA-256, 8 threads, subprocess)	3,028,653	8
python	python:3.12-slim	JSON/regex churn, sqlite3 (20k inserts + queries), 400 small-file I/O, os.walk over the stdlib, 10 subprocesses, 4 threads	1,364,400	11
go	golang:1.23-alpine	go version + gofmt over stdlib trees (net/runtime/crypto) + gofmt -d fmt	46,037	6
node	node:22-alpine	module loading, fs/crypto/zlib/JSON, then an HTTP server taking 302 host-side curl requests before /quit	18,740	1
c-compile	gcc:14	30-file C project via make -j1 + sqlite amalgamation (8 MB TU) gcc -O1 compile+link + a sqlite3 query	82,606	90

Total: 4,540,436 syscalls, 89 distinct.

Top 50 ranking (five workloads combined, descending)

#	syscall	count	share%	cum%	jvm	python	go	node	c-compile
1	futex	2,559,392	56.369	56.37	1,517,216	1,040,892	166	1,118	0
2	clock_gettime	1,849,178	40.727	97.10	1,507,075	308,525	30,326	3,251	1
3	readlinkat	48,107	1.060	98.16	109	3	1	15	47,979
4	openat	12,457	0.274	98.43	240	1,213	1,572	633	8,799
5	read	9,449	0.208	98.64	409	972	2,903	1,230	3,935
6	close	6,978	0.154	98.79	209	1,255	1,573	936	3,005
7	mmap	6,152	0.135	98.93	662	181	87	2,477	2,745
8	fcntl	5,737	0.126	99.05	31	2,035	2,926	628	117
9	newfstatat	5,347	0.118	99.17	106	1,582	1,488	0	2,171
10	fstat	5,330	0.117	99.29	171	2,131	2	14	3,012
11	lseek	3,785	0.083	99.37	104	1,712	0	11	1,958
12	munmap	3,532	0.078	99.45	195	99	2	2,406	830
13	epoll_ctl	3,515	0.077	99.53	0	0	2,903	612	0
14	write	3,011	0.066	99.59	260	454	4	305	1,988
15	mremap	2,050	0.045	99.64	0	4	0	2,046	0
16	brk	2,004	0.044	99.68	27	81	6	9	1,881
17	rt_sigaction	1,928	0.042	99.73	170	767	353	35	603
18	epoll_pwait	1,769	0.039	99.76	0	0	260	1,509	0
19	mprotect	1,234	0.027	99.79	219	98	6	79	832
20	rt_sigprocmask	1,155	0.025	99.82	353	69	64	63	606
21	ioctl	980	0.022	99.84	20	869	2	5	84
22	pread64	912	0.020	99.86	405	507	0	0	0
23	getdents64	724	0.016	99.87	10	426	234	0	54
24	faccessat	709	0.016	99.89	36	11	0	0	662
25	madvise	624	0.014	99.90	70	4	485	64	1
26	nanosleep	573	0.013	99.92	0	0	573	0	0
27	prlimit64	367	0.008	99.92	26	11	3	6	321
28	setsockopt	305	0.007	99.93	2	0	0	303	0
29	writev	304	0.007	99.94	0	0	2	302	0
30	accept4	302	0.007	99.94	0	0	0	302	0
31	shutdown	302	0.007	99.95	0	0	0	302	0
32	execve	196	0.004	99.96	8	10	5	0	173
33	pwrite64	192	0.004	99.96	0	192	0	0	0
34	getcwd	163	0.004	99.96	6	57	1	1	98
35	set_robust_list	163	0.004	99.97	55	15	0	0	93
36	rseq	154	0.003	99.97	49	15	0	0	90
37	clone3	131	0.003	99.97	41	4	0	0	86
38	sched_getaffinity	124	0.003	99.98	121	0	3	0	0
39	set_tid_address	120	0.003	99.98	9	11	8	2	90
40	exit_group	116	0.003	99.98	8	11	6	1	90
41	wait4	116	0.003	99.98	7	10	10	0	89
42	sysinfo	90	0.002	99.99	3	0	0	0	87
43	prctl	43	0.001	99.99	42	0	0	1	0
44	renameat	42	0.001	99.99	0	42	0	0	0
45	pipe2	41	0.001	99.99	7	30	0	4	0
46	unlinkat	41	0.001	99.99	3	4	0	0	34
47	clone	39	0.001	99.99	6	10	14	6	3
48	dup3	37	0.001	99.99	9	20	8	0	0
49	gettimeofday	34	0.001	99.99	4	0	0	0	30
50	statx	34	0.001	99.99	33	0	0	1	0