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Date: Fri, 23 Mar 2012 13:32:04 -0500
From: Thomas Lendacky <tahm@...ux.vnet.ibm.com>
To: Shirley Ma <mashirle@...ibm.com>
Cc: "Michael S. Tsirkin" <mst@...hat.com>, netdev@...r.kernel.org,
kvm@...r.kernel.org
Subject: Re: [RFC PATCH 1/1] NUMA aware scheduling per cpu vhost thread
I ran a series of TCP_RR, UDP_RR, TCP_STREAM and TCP_MAERTS tests
against the recent vhost patches. For simplicity, the patches
submitted by Anthony that increase the number of threads per vhost
instance I will call multi-worker and the patches submitted by Shirley
that provide a vhost thread per cpu I will call per-cpu.
Quick description of the tests:
TCP_RR and UDP_RR using 256 byte request/response size in 1, 10, 30
and 60 instances
TCP_STREAM and TCP_MAERTS using 256, 1K, 4K and 16K message sizes
and 1 and 4 instances
Remote host to VM using 1, 4, 12 and 24 VMs (2 vCPUs) with the tests
running between an external host and each VM.
Local VM to VM using 2, 4, 12 and 24 VMs (2 vCPUs) with the tests
running between VM pairs on the same host (no TCP_MAERTS done in
this situation).
For TCP_RR and UDP_RR tests I report the transaction rate as the
score and the transaction rate / KVMhost CPU% as the efficiency.
For TCP_STREAM and TCP_MAERTS tests I report the throughput in Mbps
as the score and the throughput / KVMhost CPU% as the efficiency.
The KVM host machine is a nehalem-based 2-socket, 4-cores/socket
system (E5530 @ 2.40GHz) with hyperthreading disabled and an Intel
10GbE single port network adapter.
There's a lot of data and I hope this is the clearest way to report
it. The remote host to VM results are first followed by the local
VM to VM results.
Remote Host to VM:
Host to 1 VM
- Base - -Multi-Worker- - Per-CPU -
Test Inst Score Eff Score Eff Score Eff
TCP_RR 1 9,587 984 9,725 1,145 9,252 1,041
10 63,919 3,095 51,841 2,415 55,226 2,884
30 85,646 3,288 127,277 3,242 145,644 4,092
60 117,448 3,929 148,330 3,616 137,996 3,898
UDP_RR 1 10,815 1,174 10,125 1,255 7,913 1,150
10 53,989 3,082 59,590 2,875 52,353 3,328
30 91,484 4,115 95,312 3,042 110,715 3,659
60 107,466 4,689 173,443 4,351 158,141 4,235
TCP_STREAM
256 1 2,724 140 2,450 131 2,681 150
4 5,027 137 4,147 146 3,998 117
1024 1 5,602 235 4,623 169 5,425 238
4 5,987 212 5,991 133 6,827 175
4096 1 6,202 256 6,753 211 7,247 279
4 4,996 192 5,771 159 7,124 202
16384 1 6,258 259 7,211 214 8,453 308
4 4,591 179 5,788 181 6,925 217
TCP_MAERTS
256 1 1,951 85 1,871 89 1,899 97
4 4,757 129 4,102 140 4,279 116
1024 1 7,479 381 6,970 371 7,374 427
4 8,931 385 6,612 258 8,731 417
4096 1 9,276 464 9,296 456 9,131 510
4 9,381 452 9,032 367 9,338 446
16384 1 9,153 496 8,817 589 9,238 516
4 9,358 478 9,006 367 9,350 462
Host to 1 VM (VM pinned to a socket)
- Base - -Multi-Worker- - Per-CPU -
Test Inst Score Eff Score Eff Score Eff
TCP_RR 1 9,992 1,019 9,899 917 8,963 899
10 60,731 3,236 60,015 2,444 55,860 3,059
30 127,375 4,042 146,571 3,922 163,806 4,389
60 173,021 4,972 149,549 4,662 161,397 4,330
UDP_RR 1 10,854 1,253 7,983 1,120 7,647 1,206
10 68,128 3,804 64,335 4,067 53,343 3,233
30 92,456 3,994 112,101 4,219 111,610 3,598
60 135,741 4,590 184,441 4,422 184,527 4,546
TCP_STREAM
256 1 2,564 146 2,530 147 2,497 150
4 4,757 139 4,300 127 4,245 124
1024 1 4,700 209 6,062 323 5,627 247
4 6,828 214 7,125 153 6,561 172
4096 1 6,676 281 7,672 286 7,760 290
4 6,258 236 6,410 171 7,354 225
16384 1 6,712 289 8,217 297 8,457 322
4 5,764 235 6,285 200 7,554 245
TCP_MAERTS
256 1 1,673 82 1,444 71 1,756 88
4 6,385 175 5,671 155 5,685 153
1024 1 7,500 427 6,884 414 7,640 429
4 9,310 444 8,659 496 8,200 350
4096 1 8,427 477 9,201 515 8,825 422
4 9,372 478 9,184 394 9,391 446
16384 1 8,840 500 9,205 555 9,239 482
4 9,379 495 9,079 385 9,389 472
Host to 4 VMs
- Base - -Multi-Worker- - Per-CPU -
Test Inst Score Eff Score Eff Score Eff
TCP_RR 1 38,635 949 34,063 843 35,432 897
10 193,703 2,604 157,699 1,841 180,323 2,858
30 279,736 3,301 170,343 1,739 269,827 2,875
60 308,838 3,555 170,486 1,738 285,073 2,988
UDP_RR 1 42,209 1,136 36,035 904 36,974 975
10 177,286 2,616 166,999 2,043 178,470 2,466
30 296,415 3,731 221,738 2,488 260,630 2,966
60 353,784 4,179 209,489 2,152 306,792 3,440
TCP_STREAM
256 1 8,409 113 7,517 101 7,178 115
4 8,963 93 7,825 80 8,606 91
1024 1 9,382 119 10,223 192 9,314 128
4 9,233 101 9,085 110 8,585 105
4096 1 9,391 124 9,393 125 9,300 140
4 9,303 103 9,151 102 8,601 106
16384 1 9,395 121 8,715 128 9,378 135
4 9,322 105 9,135 101 8,691 121
TCP_MAERTS
256 1 8,629 125 7,045 112 7,559 109
4 9,389 145 7,091 80 9,335 156
1024 1 9,385 201 9,349 148 9,320 248
4 9,392 154 9,340 148 9,390 226
4096 1 9,387 239 9,339 151 9,379 291
4 9,392 167 9,389 124 9,390 259
16384 1 9,374 236 9,366 150 9,391 317
4 9,365 167 9,394 123 9,390 284
Host to 12 VMs
- Base - -Multi-Worker- - Per-CPU -
Test Inst Score Eff Score Eff Score Eff
TCP_RR 1 79,628 928 85,717 944 72,760 885
10 106,348 1,067 94,032 944 164,548 2,017
30 131,313 1,318 116,431 1,168 206,560 2,367
60 156,868 1,574 152,205 1,527 223,701 2,250
UDP_RR 1 90,762 1,059 93,904 1,037 75,512 919
10 149,381 1,499 113,254 1,136 194,153 1,951
30 177,803 1,783 132,818 1,333 235,682 2,370
60 201,833 2,025 154,871 1,554 258,133 2,595
TCP_STREAM
256 1 8,549 86 7,173 72 8,407 85
4 8,910 89 8,693 87 8,768 88
1024 1 9,397 95 9,371 94 9,376 95
4 9,289 93 9,268 100 8,898 92
4096 1 9,399 95 9,415 95 9,401 97
4 9,336 94 9,319 94 8,938 94
16384 1 9,405 95 9,402 96 9,397 102
4 9,366 94 9,345 94 8,890 94
TCP_MAERTS
256 1 4,646 49 2,273 23 9,232 135
4 9,393 107 8,019 81 9,414 134
1024 1 9,393 115 9,403 104 9,399 178
4 9,406 110 9,383 98 9,392 157
4096 1 9,393 114 9,409 104 9,388 202
4 9,388 110 9,387 98 9,382 181
16384 1 9,396 114 9,391 104 9,394 221
4 9,411 110 9,384 98 9,391 192
Host to 24 VMs
- Base - -Multi-Worker- - Per-CPU -
Test Inst Score Eff Score Eff Score Eff
TCP_RR 1 110,139 1,118 101,765 1,033 79,189 805
10 94,757 948 90,872 915 156,821 1,581
30 119,904 1,199 120,728 1,207 214,151 2,211
60 144,684 1,457 146,788 1,468 240,963 2,513
UDP_RR 1 129,655 1,316 120,071 1,201 91,208 914
10 119,204 1,201 104,645 1,046 208,432 2,340
30 158,887 1,601 136,629 1,366 249,329 2,517
60 179,365 1,794 159,883 1,610 259,018 2,651
TCP_STREAM
256 1 5,899 59 4,258 44 8,071 82
4 8,739 89 8,195 83 7,934 82
1024 1 8,477 86 7,498 76 9,268 93
4 9,205 93 9,171 94 8,159 84
4096 1 9,334 96 8,992 92 9,324 97
4 9,255 95 9,221 92 8,237 85
16384 1 9,373 96 9,356 95 9,311 96
4 9,283 94 9,275 93 8,317 86
TCP_MAERTS
256 1 739 7 770 8 9,186 129
4 7,804 79 7,573 76 9,253 122
1024 1 1,763 18 1,759 18 9,287 146
4 9,204 99 9,166 93 9,389 155
4096 1 3,430 35 3,403 35 9,348 161
4 9,372 100 9,315 95 9,385 151
16384 1 9,309 102 9,306 97 9,353 175
4 9,378 100 9,392 96 9,377 159
Local VM to VM:
1 VM to 1 VM
- Base - -Multi-Worker- - Per-CPU -
Test Inst Score Eff Score Eff Score Eff
TCP_RR 1 7,422 506 7,698 462 6,281 450
10 49,662 1,362 47,553 1,205 43,258 1,270
30 91,657 1,538 99,319 1,471 89,478 1,499
60 106,168 1,658 106,430 1,503 99,205 1,576
UDP_RR 1 8,414 552 8,532 528 6,976 499
10 58,359 1,645 55,283 1,398 48,094 1,457
30 91,046 1,736 109,403 1,721 92,109 1,715
60 128,835 2,021 130,382 1,807 118,563 1,853
TCP_STREAM
256 1 2,029 60 1,923 54 1,998 64
4 3,861 66 3,445 53 2,914 54
1024 1 7,374 205 6,465 174 5,704 165
4 8,474 196 7,541 161 6,274 156
4096 1 12,825 295 11,921 275 10,262 262
4 12,639 253 13,395 260 11,451 264
16384 1 14,576 331 14,141 291 11,925 305
4 16,016 327 14,210 274 13,656 308
1 VM to 1 VM (each VM pinned to a socket)
- Base - -Multi-Worker- - Per-CPU -
Test Inst Score Eff Score Eff Score Eff
TCP_RR 1 7,145 489 7,840 477 5,965 467
10 51,016 1,406 47,881 1,223 45,232 1,288
30 92,785 1,580 103,453 1,512 91,437 1,523
60 120,160 1,817 115,058 1,595 102,734 1,611
UDP_RR 1 7,908 547 8,704 541 6,552 528
10 59,807 1,653 56,598 1,435 50,524 1,488
30 90,302 1,738 113,861 1,765 94,640 1,720
60 141,684 2,196 141,866 1,919 125,334 1,917
TCP_STREAM
256 1 2,210 64 1,291 32 2,069 64
4 3,993 64 3,441 52 2,780 50
1024 1 8,106 217 7,571 198 5,709 165
4 8,471 206 8,756 174 6,531 157
4096 1 15,360 350 13,825 303 10,717 271
4 14,671 330 12,604 263 11,266 258
16384 1 18,284 395 16,305 337 13,185 317
4 15,451 331 12,438 247 14,699 316
2 VMs to 2 VMs (4 VMs total)
- Base - -Multi-Worker- - Per-CPU -
Test Inst Score Eff Score Eff Score Eff
TCP_RR 1 15,498 491 16,518 460 13,008 441
10 71,425 983 79,711 1,063 85,087 1,037
30 102,132 1,436 82,191 1,145 100,504 1,076
60 127,670 1,608 96,815 1,262 104,694 1,119
UDP_RR 1 17,091 548 18,214 538 14,780 492
10 77,682 1,129 87,523 1,235 86,755 1,165
30 131,830 1,826 92,844 1,327 111,839 1,232
60 145,688 1,952 111,315 1,520 116,358 1,296
TCP_STREAM
256 1 5,085 72 3,900 50 2,430 38
4 6,622 70 4,337 48 5,032 58
1024 1 15,262 206 15,022 195 7,000 115
4 14,205 174 15,288 174 11,030 148
4096 1 15,020 197 21,694 261 13,583 198
4 16,818 205 16,076 195 17,175 238
16384 1 19,671 261 23,699 290 22,396 306
4 18,648 229 17,901 218 17,122 251
6 VMs to 6 VMs (12 VMs total)
- Base - -Multi-Worker- - Per-CPU -
Test Inst Score Eff Score Eff Score Eff
TCP_RR 1 30,242 400 32,281 390 27,737 401
10 73,461 783 61,856 644 93,259 1,000
30 98,638 1,034 81,799 844 107,022 1,121
60 114,238 1,200 91,772 944 110,839 1,152
UDP_RR 1 33,017 438 35,540 429 30,022 438
10 84,676 910 67,838 711 112,339 1,220
30 110,799 1,156 90,555 932 128,928 1,357
60 129,679 1,354 100,715 1,033 136,503 1,429
TCP_STREAM
256 1 6,947 72 5,380 56 6,138 72
4 8,400 85 7,660 77 8,893 89
1024 1 13,698 146 10,307 108 13,023 158
4 15,391 157 13,242 135 17,264 182
4096 1 18,928 202 14,580 154 16,970 189
4 18,826 191 17,262 175 19,558 212
16384 1 22,176 234 17,716 187 21,245 243
4 21,306 215 20,332 206 18,353 227
12 VMs to 12 VMs (24 VMs total)
- Base - -Multi-Worker- - Per-CPU -
Test Inst Score Eff Score Eff Score Eff
TCP_RR 1 72,926 731 67,338 675 32,662 387
10 62,441 625 59,277 594 87,286 891
30 72,761 728 67,760 679 102,549 1,041
60 78,087 782 74,654 748 100,687 1,016
UDP_RR 1 82,662 829 80,875 810 34,915 421
10 71,424 716 67,754 679 111,753 1,147
30 79,495 796 75,512 756 134,576 1,372
60 83,339 835 77,523 778 137,058 1,390
TCP_STREAM
256 1 2,870 29 2,631 26 7,907 80
4 8,424 84 8,026 80 8,929 90
1024 1 3,674 37 3,121 31 15,644 164
4 14,256 143 13,342 134 16,116 168
4096 1 5,068 51 4,366 44 16,179 168
4 17,015 171 16,321 164 17,940 186
16384 1 9,768 98 9,025 90 19,233 203
4 18,981 190 18,202 183 18,964 203
On Thursday, March 22, 2012 05:16:30 PM Shirley Ma wrote:
> Resubmit it with the right format.
>
> Signed-off-by: Shirley Ma <xma@...ibm.com>
> Signed-off-by: Krishna Kumar <krkumar2@...ibm.com>
> Tested-by: Tom Lendacky <toml@...ibm.com>
> ---
>
> drivers/vhost/net.c | 26 ++-
> drivers/vhost/vhost.c | 300
> ++++++++++++++++++++++++---------- drivers/vhost/vhost.h |
> 16 ++-
> 3 files changed, 243 insertions(+), 103 deletions(-)
>
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