| /kernel/linux/linux-4.19/tools/testing/selftests/powerpc/pmu/ebb/ |
| D | instruction_count_test.c | 26 uint64_t overhead, bool report) in do_count_loop() argument
46 expected = instructions + overhead; in do_count_loop()
51 printf("Looped for %lu instructions, overhead %lu\n", instructions, overhead); in do_count_loop()
72 uint64_t current, overhead; in determine_overhead() local
76 overhead = event->result.value; in determine_overhead()
81 if (current < overhead) { in determine_overhead()
82 printf("Replacing overhead %lu with %lu\n", overhead, current); in determine_overhead()
83 overhead = current; in determine_overhead()
87 return overhead; in determine_overhead()
112 uint64_t overhead; in instruction_count() local
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| /kernel/linux/linux-5.10/tools/testing/selftests/powerpc/pmu/ebb/ |
| D | instruction_count_test.c | 26 uint64_t overhead, bool report) in do_count_loop() argument
46 expected = instructions + overhead; in do_count_loop()
51 printf("Looped for %lu instructions, overhead %lu\n", instructions, overhead); in do_count_loop()
72 uint64_t current, overhead; in determine_overhead() local
76 overhead = event->result.value; in determine_overhead()
81 if (current < overhead) { in determine_overhead()
82 printf("Replacing overhead %lu with %lu\n", overhead, current); in determine_overhead()
83 overhead = current; in determine_overhead()
87 return overhead; in determine_overhead()
112 uint64_t overhead; in instruction_count() local
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| /kernel/linux/linux-5.10/tools/testing/selftests/powerpc/pmu/ |
| D | count_instructions.c | 30 u64 overhead, bool report) in do_count_loop() argument
45 expected = instructions + overhead; in do_count_loop()
53 printf("Looped for %llu instructions, overhead %llu\n", instructions, overhead); in do_count_loop()
76 u64 current, overhead; in determine_overhead() local
80 overhead = events[0].result.value; in determine_overhead()
85 if (current < overhead) { in determine_overhead()
86 printf("Replacing overhead %llu with %llu\n", overhead, current); in determine_overhead()
87 overhead = current; in determine_overhead()
91 return overhead; in determine_overhead()
97 u64 overhead; in test_body() local
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| D | count_stcx_fail.c | 30 u64 overhead, bool report) in do_count_loop() argument
47 expected = instructions + overhead + (events[2].result.value * 10); in do_count_loop()
57 printf("Looped for %llu instructions, overhead %llu\n", instructions, overhead); in do_count_loop()
81 u64 current, overhead; in determine_overhead() local
85 overhead = events[0].result.value; in determine_overhead()
90 if (current < overhead) { in determine_overhead()
91 printf("Replacing overhead %llu with %llu\n", overhead, current); in determine_overhead()
92 overhead = current; in determine_overhead()
96 return overhead; in determine_overhead()
105 u64 overhead; in test_body() local
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| /kernel/linux/linux-4.19/tools/testing/selftests/powerpc/pmu/ |
| D | count_instructions.c | 30 u64 overhead, bool report) in do_count_loop() argument
45 expected = instructions + overhead; in do_count_loop()
53 printf("Looped for %llu instructions, overhead %llu\n", instructions, overhead); in do_count_loop()
76 u64 current, overhead; in determine_overhead() local
80 overhead = events[0].result.value; in determine_overhead()
85 if (current < overhead) { in determine_overhead()
86 printf("Replacing overhead %llu with %llu\n", overhead, current); in determine_overhead()
87 overhead = current; in determine_overhead()
91 return overhead; in determine_overhead()
97 u64 overhead; in test_body() local
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| /kernel/linux/linux-5.10/tools/perf/Documentation/ |
| D | callchain-overhead-calculation.txt | 1 Overhead calculation
3 The overhead can be shown in two columns as 'Children' and 'Self' when
4 perf collects callchains. The 'self' overhead is simply calculated by
7 'self' overhead values should be 100%.
9 The 'children' overhead is calculated by adding all period values of
10 the child functions so that it can show the total overhead of the
15 It might be confusing that the sum of all the 'children' overhead
17 'self' overhead of its child functions. But with this enabled, users
18 can find which function has the most overhead even if samples are
45 in the usual (self-overhead-only) output of perf report:
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| D | perf-config.txt | 184 'top' means a overhead percentage which is more than 5%.
189 'medium' means a overhead percentage which has more than 0.5%.
192 'normal' means the rest of overhead percentages
360 But if this option is 'false', percent values for overhead are printed i.e.
391 This option control the way to calculate overhead of filtered entries -
395 Overhead Symbols
401 This is an original overhead and we'll filter out the first 'foo'
402 entry. The value of 'relative' would increase the overhead of 'bar'
404 current overhead (33.33%).
408 This option controls display of column headers (like 'Overhead' and 'Symbol')
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| D | perf-report.txt | 47 the overhead column. See --percentage for more info.
57 the overhead column. See --percentage for more info.
62 the overhead column. See --percentage for more info.
100 - overhead: Overhead percentage of sample
101 - overhead_sys: Overhead percentage of sample running in system mode
102 - overhead_us: Overhead percentage of sample running in user mode
103 - overhead_guest_sys: Overhead percentage of sample running in system mode
105 - overhead_guest_us: Overhead percentage of sample running in user mode on
110 --time-quantum (default 100ms). Specify with overhead and before it.
137 executed, such as a memory access bottleneck. If a function has high overhead
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| D | perf-top.txt | 132 local_weight, abort, in_tx, transaction, overhead, sample, period.
138 overhead, overhead_sys, overhead_us, overhead_children, sample and period.
153 percentage of the overhead column. See --percentage for more info.
157 percentage of the overhead column. See --percentage for more info.
161 percentage of the overhead column. See --percentage for more info.
191 enabled. See the `overhead calculation' section for more details.
208 Do not show entries which have an overhead under that percent.
212 Determine how to display the overhead percentage of filtered entries.
303 Alternatively one can ask for --group and then two overhead columns
381 include::callchain-overhead-calculation.txt[]
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| /kernel/linux/linux-4.19/tools/perf/Documentation/ |
| D | callchain-overhead-calculation.txt | 1 Overhead calculation
3 The overhead can be shown in two columns as 'Children' and 'Self' when
4 perf collects callchains. The 'self' overhead is simply calculated by
7 'self' overhead values should be 100%.
9 The 'children' overhead is calculated by adding all period values of
10 the child functions so that it can show the total overhead of the
15 It might be confusing that the sum of all the 'children' overhead
17 'self' overhead of its child functions. But with this enabled, users
18 can find which function has the most overhead even if samples are
45 in the usual (self-overhead-only) output of perf report:
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| D | perf-config.txt | 176 'top' means a overhead percentage which is more than 5%.
181 'medium' means a overhead percentage which has more than 0.5%.
184 'normal' means the rest of overhead percentages
332 But if this option is 'false', percent values for overhead are printed i.e.
344 This option control the way to calculate overhead of filtered entries -
348 Overhead Symbols
354 This is an original overhead and we'll filter out the first 'foo'
355 entry. The value of 'relative' would increase the overhead of 'bar'
357 current overhead (33.33%).
361 This option controls display of column headers (like 'Overhead' and 'Symbol')
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| D | perf-report.txt | 47 the overhead column. See --percentage for more info.
57 the overhead column. See --percentage for more info.
62 the overhead column. See --percentage for more info.
99 - overhead: Overhead percentage of sample
100 - overhead_sys: Overhead percentage of sample running in system mode
101 - overhead_us: Overhead percentage of sample running in user mode
102 - overhead_guest_sys: Overhead percentage of sample running in system mode
104 - overhead_guest_us: Overhead percentage of sample running in user mode on
174 overhead, overhead_sys, overhead_us, overhead_children, sample and period.
218 - graph: use a graph tree, displaying absolute overhead rates. (default)
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| D | perf-top.txt | 124 local_weight, abort, in_tx, transaction, overhead, sample, period.
130 overhead, overhead_sys, overhead_us, overhead_children, sample and period.
145 percentage of the overhead column. See --percentage for more info.
149 percentage of the overhead column. See --percentage for more info.
153 percentage of the overhead column. See --percentage for more info.
177 enabled. See the `overhead calculation' section for more details.
194 Do not show entries which have an overhead under that percent.
198 Determine how to display the overhead percentage of filtered entries.
290 include::callchain-overhead-calculation.txt[]
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| /kernel/linux/linux-5.10/drivers/net/fddi/skfp/ |
| D | ess.c | 101 static int process_bw_alloc(struct s_smc *smc, long int payload, long int overhead);
120 u_long payload, overhead ; in ess_raf_received_pack() local
258 overhead = ((struct smt_p_3210 *)p)->mib_overhead ; in ess_raf_received_pack()
260 DB_ESSN(2, "payload= %lx overhead= %lx", in ess_raf_received_pack()
261 payload, overhead); in ess_raf_received_pack()
266 (void)process_bw_alloc(smc,(long)payload,(long)overhead) ; in ess_raf_received_pack()
309 overhead = ((struct smt_p_3210 *)p)->mib_overhead ; in ess_raf_received_pack()
313 DB_ESSN(2, "payload= %lx overhead= %lx", in ess_raf_received_pack()
314 payload, overhead); in ess_raf_received_pack()
319 if(!process_bw_alloc(smc,(long)payload,(long)overhead)) in ess_raf_received_pack()
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| /kernel/linux/linux-4.19/drivers/net/fddi/skfp/ |
| D | ess.c | 105 static int process_bw_alloc(struct s_smc *smc, long int payload, long int overhead);
124 u_long payload, overhead ; in ess_raf_received_pack() local
262 overhead = ((struct smt_p_3210 *)p)->mib_overhead ; in ess_raf_received_pack()
264 DB_ESSN(2, "payload= %lx overhead= %lx", in ess_raf_received_pack()
265 payload, overhead); in ess_raf_received_pack()
270 (void)process_bw_alloc(smc,(long)payload,(long)overhead) ; in ess_raf_received_pack()
313 overhead = ((struct smt_p_3210 *)p)->mib_overhead ; in ess_raf_received_pack()
317 DB_ESSN(2, "payload= %lx overhead= %lx", in ess_raf_received_pack()
318 payload, overhead); in ess_raf_received_pack()
323 if(!process_bw_alloc(smc,(long)payload,(long)overhead)) in ess_raf_received_pack()
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| /kernel/linux/linux-5.10/net/l2tp/ |
| D | l2tp_eth.c | 208 unsigned int overhead = 0; in l2tp_eth_adjust_mtu() local
214 overhead += sizeof(struct udphdr); in l2tp_eth_adjust_mtu()
223 /* L3 Overhead couldn't be identified, this could be in l2tp_eth_adjust_mtu()
230 /* Adjust MTU, factor overhead - underlay L3, overlay L2 hdr in l2tp_eth_adjust_mtu()
231 * UDP overhead, if any, was already factored in above. in l2tp_eth_adjust_mtu()
233 overhead += session->hdr_len + ETH_HLEN + l3_overhead; in l2tp_eth_adjust_mtu()
235 mtu = l2tp_tunnel_dst_mtu(tunnel) - overhead; in l2tp_eth_adjust_mtu()
237 dev->mtu = ETH_DATA_LEN - overhead; in l2tp_eth_adjust_mtu()
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| /kernel/linux/linux-5.10/tools/testing/selftests/seccomp/ |
| D | seccomp_benchmark.c | 112 printf("No overhead measured!? Try running again with more samples.\n"); in main()
122 printf("Estimated total seccomp overhead for 1 filter: %llu ns\n", in main()
125 printf("Estimated total seccomp overhead for 2 filters: %llu ns\n", in main()
128 printf("Estimated seccomp per-filter overhead: %llu ns\n", in main()
131 printf("Estimated seccomp entry overhead: %llu ns\n", in main()
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| /kernel/linux/linux-4.19/net/l2tp/ |
| D | l2tp_eth.c | 226 unsigned int overhead = 0; in l2tp_eth_adjust_mtu() local
232 overhead += sizeof(struct udphdr); in l2tp_eth_adjust_mtu()
241 /* L3 Overhead couldn't be identified, this could be in l2tp_eth_adjust_mtu()
248 /* Adjust MTU, factor overhead - underlay L3, overlay L2 hdr in l2tp_eth_adjust_mtu()
249 * UDP overhead, if any, was already factored in above. in l2tp_eth_adjust_mtu()
251 overhead += session->hdr_len + ETH_HLEN + l3_overhead; in l2tp_eth_adjust_mtu()
253 mtu = l2tp_tunnel_dst_mtu(tunnel) - overhead; in l2tp_eth_adjust_mtu()
255 dev->mtu = ETH_DATA_LEN - overhead; in l2tp_eth_adjust_mtu()
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| /kernel/linux/linux-4.19/mm/ |
| D | Kconfig.debug | 28 By default this option will have a small overhead, e.g. by not
30 architectures. Even bigger overhead comes when the debugging is
62 poison on free. This reduces some of the overhead of the
89 kernel code. However the runtime performance overhead is virtually
|
| /kernel/linux/linux-5.10/drivers/net/wireless/ralink/rt2x00/ |
| D | rt2x00crypto.c | 68 unsigned int overhead = 0; in rt2x00crypto_tx_overhead() local
71 return overhead; in rt2x00crypto_tx_overhead()
78 overhead += key->icv_len; in rt2x00crypto_tx_overhead()
81 overhead += key->iv_len; in rt2x00crypto_tx_overhead()
85 overhead += 8; in rt2x00crypto_tx_overhead()
88 return overhead; in rt2x00crypto_tx_overhead()
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| /kernel/linux/linux-4.19/drivers/net/wireless/ralink/rt2x00/ |
| D | rt2x00crypto.c | 79 unsigned int overhead = 0; in rt2x00crypto_tx_overhead() local
82 return overhead; in rt2x00crypto_tx_overhead()
89 overhead += key->icv_len; in rt2x00crypto_tx_overhead()
92 overhead += key->iv_len; in rt2x00crypto_tx_overhead()
96 overhead += 8; in rt2x00crypto_tx_overhead()
99 return overhead; in rt2x00crypto_tx_overhead()
|
| /kernel/linux/linux-5.10/fs/freevxfs/ |
| D | vxfs_lookup.c | 108 int overhead = VXFS_DIRBLKOV(sbi, dbp); in vxfs_find_entry() local
110 pos += overhead; in vxfs_find_entry()
111 pg_ofs += overhead; in vxfs_find_entry()
259 int overhead = VXFS_DIRBLKOV(sbi, dbp); in vxfs_readdir() local
261 pos += overhead; in vxfs_readdir()
262 pg_ofs += overhead; in vxfs_readdir()
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| /kernel/linux/linux-4.19/fs/freevxfs/ |
| D | vxfs_lookup.c | 108 int overhead = VXFS_DIRBLKOV(sbi, dbp); in vxfs_find_entry() local
110 pos += overhead; in vxfs_find_entry()
111 pg_ofs += overhead; in vxfs_find_entry()
259 int overhead = VXFS_DIRBLKOV(sbi, dbp); in vxfs_readdir() local
261 pos += overhead; in vxfs_readdir()
262 pg_ofs += overhead; in vxfs_readdir()
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| /kernel/linux/linux-4.19/Documentation/mmc/ |
| D | mmc-async-req.txt | 4 How significant is the cache maintenance overhead?
6 pre-fetch makes the cache overhead relatively significant. If the DMA
8 transfer, the DMA preparation overhead would not affect the MMC performance.
64 Pseudocode to handle is_first_req scenario with minimal prepare overhead:
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| /kernel/linux/linux-4.19/net/sctp/ |
| D | output.c | 73 * current overhead after sending packets. in sctp_packet_reset()
75 packet->size = packet->overhead; in sctp_packet_reset()
103 /* set packet max_size with pathmtu, then calculate overhead */ in sctp_packet_config()
110 packet->overhead = sctp_mtu_payload(sp, 0, 0); in sctp_packet_config()
111 packet->size = packet->overhead; in sctp_packet_config()
167 /* The overhead will be calculated by sctp_packet_config() */ in sctp_packet_init()
168 packet->overhead = 0; in sctp_packet_init()
440 pkt_size = packet->overhead; in sctp_packet_pack()
447 else if (auth_len + padded + packet->overhead > in sctp_packet_pack()
457 skb_reserve(nskb, packet->overhead + MAX_HEADER); in sctp_packet_pack()
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