| /linux-6.12.1/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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| /linux-6.12.1/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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| /linux-6.12.1/tools/perf/Documentation/ |
| D | callchain-overhead-calculation.txt | 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:
64 When the --children option is enabled, the 'self' overhead values of
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| D | perf-config.txt | 182 'top' means a overhead percentage which is more than 5%.
187 'medium' means a overhead percentage which has more than 0.5%.
190 'normal' means the rest of overhead percentages
372 But if this option is 'false', percent values for overhead are printed i.e.
409 This option control the way to calculate overhead of filtered entries -
419 This is an original overhead and we'll filter out the first 'foo'
420 entry. The value of 'relative' would increase the overhead of 'bar'
422 current overhead (33.33%).
448 flat and folded. This option controls a way to show overhead for each callchain
465 (meaning that it assumes 100% total overhead of 'foo').
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| D | perf-top.txt | 134 local_weight, abort, in_tx, transaction, overhead, sample, period.
140 overhead, overhead_sys, overhead_us, overhead_children, sample and period.
155 percentage of the overhead column. See --percentage for more info.
159 percentage of the overhead column. See --percentage for more info.
163 percentage of the overhead column. See --percentage for more info.
199 enabled. See the `overhead calculation' section for more details.
216 Do not show entries which have an overhead under that percent.
220 Determine how to display the overhead percentage of filtered entries.
357 Alternatively one can ask for a group and then two overhead columns
435 include::callchain-overhead-calculation.txt[]
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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
110 --time-quantum (default 100ms). Specify with overhead and before it.
153 executed, such as a memory access bottleneck. If a function has high overhead
204 overhead, overhead_sys, overhead_us, overhead_children, sample, period,
255 - graph: use a graph tree, displaying absolute overhead rates. (default)
284 - percent: display overhead percent (default)
292 See the `overhead calculation' section for more details. Enabled by
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| /linux-6.12.1/drivers/net/fddi/skfp/ |
| D | ess.c | 100 static int process_bw_alloc(struct s_smc *smc, long int payload, long int overhead);
119 u_long payload, overhead ; in ess_raf_received_pack() local
257 overhead = ((struct smt_p_3210 *)p)->mib_overhead ; in ess_raf_received_pack()
260 payload, overhead); in ess_raf_received_pack()
265 (void)process_bw_alloc(smc,(long)payload,(long)overhead) ; in ess_raf_received_pack()
308 overhead = ((struct smt_p_3210 *)p)->mib_overhead ; in ess_raf_received_pack()
313 payload, overhead); in ess_raf_received_pack()
318 if(!process_bw_alloc(smc,(long)payload,(long)overhead)) in ess_raf_received_pack()
375 static int process_bw_alloc(struct s_smc *smc, long int payload, long int overhead) in process_bw_alloc() argument
426 if (payload > MAX_PAYLOAD || overhead > 5000) { in process_bw_alloc()
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| /linux-6.12.1/net/sctp/ |
| D | output.c | 60 packet->size = packet->overhead; in sctp_packet_reset()
95 packet->overhead = sctp_mtu_payload(sp, 0, 0); in sctp_packet_config()
96 packet->size = packet->overhead; in sctp_packet_config()
155 packet->overhead = 0; in sctp_packet_init()
221 int overhead = 0; in sctp_packet_bundle_pad() local
227 overhead += sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr); in sctp_packet_bundle_pad()
228 overhead += sizeof(struct sctp_sender_hb_info) + sizeof(struct sctp_pad_chunk); in sctp_packet_bundle_pad()
229 pad = sctp_make_pad(t->asoc, t->pl.probe_size - overhead); in sctp_packet_bundle_pad()
458 pkt_size = packet->overhead; in sctp_packet_pack()
465 else if (auth_len + padded + packet->overhead > in sctp_packet_pack()
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| /linux-6.12.1/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()
|
| /linux-6.12.1/fs/freevxfs/ |
| D | vxfs_lookup.c | 84 int overhead = VXFS_DIRBLKOV(sbi, dbp); in vxfs_find_entry() local
86 pos += overhead; in vxfs_find_entry()
87 pg_ofs += overhead; in vxfs_find_entry()
234 int overhead = VXFS_DIRBLKOV(sbi, dbp); in vxfs_readdir() local
236 pos += overhead; in vxfs_readdir()
237 pg_ofs += overhead; in vxfs_readdir()
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| /linux-6.12.1/fs/xfs/libxfs/ |
| D | xfs_trans_resv.c | 469 unsigned int overhead = XFS_DQUOT_LOGRES; in xfs_calc_rename_reservation() local
508 overhead += max(rename_overhead, exchange_overhead); in xfs_calc_rename_reservation()
511 return overhead + max3(t1, t2, t3); in xfs_calc_rename_reservation()
580 unsigned int overhead = XFS_DQUOT_LOGRES; in xfs_calc_link_reservation() local
584 overhead += xfs_calc_iunlink_remove_reservation(mp); in xfs_calc_link_reservation()
593 overhead += xfs_calc_pptr_link_overhead(); in xfs_calc_link_reservation()
596 return overhead + max3(t1, t2, t3); in xfs_calc_link_reservation()
644 unsigned int overhead = XFS_DQUOT_LOGRES; in xfs_calc_remove_reservation() local
648 overhead += xfs_calc_iunlink_add_reservation(mp); in xfs_calc_remove_reservation()
658 overhead += xfs_calc_pptr_unlink_overhead(); in xfs_calc_remove_reservation()
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| /linux-6.12.1/net/l2tp/ |
| D | l2tp_eth.c | 189 unsigned int overhead = 0; in l2tp_eth_adjust_mtu() local
195 overhead += sizeof(struct udphdr); in l2tp_eth_adjust_mtu()
214 overhead += session->hdr_len + ETH_HLEN + l3_overhead; in l2tp_eth_adjust_mtu()
216 mtu = l2tp_tunnel_dst_mtu(tunnel) - overhead; in l2tp_eth_adjust_mtu()
218 dev->mtu = ETH_DATA_LEN - overhead; in l2tp_eth_adjust_mtu()
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| /linux-6.12.1/include/net/sctp/ |
| D | sctp.h | 576 __u32 overhead = sizeof(struct sctphdr) + extra; in __sctp_mtu_payload() local
579 overhead += sp->pf->af->net_header_len; in __sctp_mtu_payload()
581 overhead += sizeof(struct udphdr); in __sctp_mtu_payload()
583 overhead += sizeof(struct ipv6hdr); in __sctp_mtu_payload()
586 if (WARN_ON_ONCE(mtu && mtu <= overhead)) in __sctp_mtu_payload()
587 mtu = overhead; in __sctp_mtu_payload()
589 return mtu ? mtu - overhead : overhead; in __sctp_mtu_payload()
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| /linux-6.12.1/fs/ext4/ |
| D | resize.c | 109 ext4_grpblk_t overhead; in ext4_group_overhead_blocks() local
110 overhead = ext4_bg_num_gdb(sb, group); in ext4_group_overhead_blocks()
112 overhead += 1 + in ext4_group_overhead_blocks()
114 return overhead; in ext4_group_overhead_blocks()
129 unsigned overhead; in verify_group_input() local
141 overhead = ext4_group_overhead_blocks(sb, group); in verify_group_input()
142 metaend = start + overhead; in verify_group_input()
143 free_blocks_count = input->blocks_count - 2 - overhead - in verify_group_input()
317 unsigned overhead; in ext4_alloc_group_tables() local
335 overhead = ext4_group_overhead_blocks(sb, src_group); in ext4_alloc_group_tables()
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| /linux-6.12.1/Documentation/driver-api/mmc/ |
| D | mmc-async-req.rst | 8 How significant is the cache maintenance overhead?
11 pre-fetch makes the cache overhead relatively significant. If the DMA
13 transfer, the DMA preparation overhead would not affect the MMC performance.
75 Pseudocode to handle is_first_req scenario with minimal prepare overhead::
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| /linux-6.12.1/Documentation/virt/ |
| D | paravirt_ops.rst | 25 known that the overhead of indirect call isn't very important.
29 are called frequently and are performance critical. The overhead is
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| /linux-6.12.1/net/mac80211/ |
| D | airtime.c | 508 u32 *overhead) in ieee80211_get_rate_duration() argument
579 *overhead = 36 + (streams << 2); in ieee80211_get_rate_duration()
590 u32 duration, overhead = 0; in ieee80211_calc_rx_airtime() local
613 duration = ieee80211_get_rate_duration(hw, status, &overhead); in ieee80211_calc_rx_airtime()
621 return duration + overhead; in ieee80211_calc_rx_airtime()
781 u32 duration, overhead; in ieee80211_calc_expected_tx_airtime() local
790 duration = ieee80211_get_rate_duration(hw, &stat, &overhead); in ieee80211_calc_expected_tx_airtime()
816 duration += (overhead >> agg_shift); in ieee80211_calc_expected_tx_airtime()
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| D | rc80211_minstrel_ht.c | 503 unsigned int nsecs = 0, overhead = mi->overhead; in minstrel_ht_get_tp_avg() local
511 overhead = mi->overhead_legacy; in minstrel_ht_get_tp_avg()
515 nsecs = 1000 * overhead / ampdu_len; in minstrel_ht_get_tp_avg()
1391 unsigned int overhead = 0, overhead_rtscts = 0; in minstrel_calc_retransmit() local
1413 overhead = mi->overhead_legacy; in minstrel_calc_retransmit()
1416 overhead = mi->overhead; in minstrel_calc_retransmit()
1421 tx_time = ctime + 2 * (overhead + tx_time_data); in minstrel_calc_retransmit()
1431 tx_time += ctime + overhead + tx_time_data; in minstrel_calc_retransmit()
1729 mi->overhead = ieee80211_frame_duration(sband->band, 0, 60, 1, 1); in minstrel_ht_update_caps()
1730 mi->overhead += ack_dur; in minstrel_ht_update_caps()
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| /linux-6.12.1/Documentation/mm/damon/ |
| D | index.rst | 13 - *light-weight* (the monitoring overhead is low enough to be applied online),
15 - *scalable* (the upper-bound of the overhead is in constant range regardless
|
| /linux-6.12.1/Documentation/usb/ |
| D | ohci.rst | 20 - improved robustness; bugfixes; and less overhead
30 to overhead in IRQ processing. When interrupt transfers are queued, those
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| /linux-6.12.1/drivers/net/fddi/skfp/h/ |
| D | smt.h | 799 struct smt_p_3210 overhead ; /* current SBA overhead */ member
816 struct smt_p_3210 overhead ; /* current SBA overhead */ member
832 struct smt_p_3210 overhead ; /* current SBA overhead */ member
854 struct smt_p_3210 overhead ; /* current SBA overhead */ member
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| /linux-6.12.1/arch/riscv/ |
| D | Kconfig.errata | 11 Otherwise, please say "N" here to avoid unnecessary overhead.
32 Otherwise, please say "N" here to avoid unnecessary overhead.
83 Otherwise, please say "N" here to avoid unnecessary overhead.
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| /linux-6.12.1/Documentation/filesystems/ext4/ |
| D | bigalloc.rst | 11 blocks to reduce both fragmentation and metadata overhead. The
23 also shrinking the amount of file system overhead for metadata.
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| /linux-6.12.1/fs/netfs/ |
| D | Kconfig | 19 The gathering of statistics adds a certain amount of overhead to
54 The gathering of statistics adds a certain amount of overhead to
|