gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

HFI1: more detailed profiling (disabled by default)

Browse Source
This commit is contained in:
Balazs Gerofi
2017-08-20 12:02:40 +09:00
parent 6406a0df6b
commit d35fa16417
3 changed files with 16 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
kernel/include/profile.h
View File

@@ -44,6 +44,7 @@ enum profile_event_type {
PROFILE_mmap_anon_no_contig_phys, PROFILE_mmap_anon_no_contig_phys,
PROFILE_mmap_regular_file, PROFILE_mmap_regular_file,
PROFILE_mmap_device_file, PROFILE_mmap_device_file,
PROFILE_sdma_0,
PROFILE_sdma_1, PROFILE_sdma_1,
PROFILE_sdma_2, PROFILE_sdma_2,
PROFILE_sdma_3, PROFILE_sdma_3,

1
kernel/profile.c
View File

@@ -69,6 +69,7 @@ char *profile_event_names[] =
"mmap_anon_no_contig_phys", "mmap_anon_no_contig_phys",
"mmap_regular_file", "mmap_regular_file",
"mmap_device_file", "mmap_device_file",
"sdma_0",
"sdma_1", "sdma_1",
"sdma_2", "sdma_2",
"sdma_3", "sdma_3",

23
kernel/user_sdma.c
View File

@@ -1277,11 +1277,6 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts)
#else #else
tx = kmalloc_cache_alloc(&txreq_cache, sizeof(*tx)); tx = kmalloc_cache_alloc(&txreq_cache, sizeof(*tx));
#endif /* __HFI1_ORIG__ */ #endif /* __HFI1_ORIG__ */
#ifdef PROFILE_ENABLE
profile_event_add(PROFILE_sdma_1,
(rdtsc() - prof_ts));
prof_ts = rdtsc();
#endif // PROFILE_ENABLE
if (!tx) if (!tx)
return -ENOMEM; return -ENOMEM;
TP("- kmalloc"); TP("- kmalloc");
@@ -1299,6 +1294,11 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts)
tx->flags |= (TXREQ_FLAGS_REQ_ACK | tx->flags |= (TXREQ_FLAGS_REQ_ACK |
TXREQ_FLAGS_REQ_DISABLE_SH); TXREQ_FLAGS_REQ_DISABLE_SH);
#ifdef PROFILE_ENABLE
profile_event_add(PROFILE_sdma_0,
(rdtsc() - prof_ts));
prof_ts = rdtsc();
#endif // PROFILE_ENABLE
/* /*
* Calculate the payload size - this is min of the fragment * Calculate the payload size - this is min of the fragment
* (MTU) size or the remaining bytes in the request but only * (MTU) size or the remaining bytes in the request but only
@@ -1335,6 +1335,11 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts)
} }
} }
#ifdef PROFILE_ENABLE
profile_event_add(PROFILE_sdma_1,
(rdtsc() - prof_ts));
prof_ts = rdtsc();
#endif // PROFILE_ENABLE
if (test_bit(SDMA_REQ_HAVE_AHG, &req->flags)) { if (test_bit(SDMA_REQ_HAVE_AHG, &req->flags)) {
TP("+ if test_bit(SDMA_REQ_HAVE_AHG, &req->flags)"); TP("+ if test_bit(SDMA_REQ_HAVE_AHG, &req->flags)");
if (!req->seqnum) { if (!req->seqnum) {
@@ -1404,15 +1409,15 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts)
} }
TP("- test_bit(SDMA_REQ_HAVE_AHG, &req->flags)"); TP("- test_bit(SDMA_REQ_HAVE_AHG, &req->flags)");
/*
* If the request contains any data vectors, add up to
* fragsize bytes to the descriptor.
*/
#ifdef PROFILE_ENABLE #ifdef PROFILE_ENABLE
profile_event_add(PROFILE_sdma_2, profile_event_add(PROFILE_sdma_2,
(rdtsc() - prof_ts)); (rdtsc() - prof_ts));
prof_ts = rdtsc(); prof_ts = rdtsc();
#endif // PROFILE_ENABLE #endif // PROFILE_ENABLE
/*
* If the request contains any data vectors, add up to
* fragsize bytes to the descriptor.
*/
TP("+ If the request contains any data vectors, add up to fragsize bytes to the descriptor."); TP("+ If the request contains any data vectors, add up to fragsize bytes to the descriptor.");
while (queued < datalen && while (queued < datalen &&
(req->sent + data_sent) < req->data_len) { (req->sent + data_sent) < req->data_len) {