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Message-Id: <1372257487-9749-1-git-send-email-mgorman@suse.de>
Date: Wed, 26 Jun 2013 15:37:59 +0100
From: Mel Gorman <mgorman@...e.de>
To: Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Ingo Molnar <mingo@...nel.org>
Cc: Andrea Arcangeli <aarcange@...hat.com>,
Johannes Weiner <hannes@...xchg.org>,
Linux-MM <linux-mm@...ck.org>,
LKML <linux-kernel@...r.kernel.org>, Mel Gorman <mgorman@...e.de>
Subject: [PATCH 0/6] Basic scheduler support for automatic NUMA balancing
It's several months overdue and everything was quiet after 3.8 came out
but I recently had a chance to revisit automatic NUMA balancing for a few
days. I looked at basic scheduler integration resulting in the following
small series. Much of the following is heavily based on the numacore series
which in itself takes part of the autonuma series from back in November. In
particular it borrows heavily from Peter Ziljstra's work in "sched, numa,
mm: Add adaptive NUMA affinity support" but deviates too much to preserve
Signed-off-bys. As before, if the relevant authors are ok with it I'll
add Signed-off-bys (or add them yourselves if you pick the patches up).
This is still far from complete and there are known performance gaps between
this and manual binding where possible and depending on the workload between
it and interleaving when hard bindings are not an option. As before,
the intention is not to complete the work but to incrementally improve
mainline and preserve bisectability for any bug reports that crop up. This
will allow us to validate each step and keep reviewer stress to a minimum.
Patch 1 adds sysctl documentation
Patch 2 tracks NUMA hinting faults per-task and per-node
Patches 3-5 selects a preferred node at the end of a PTE scan based on what
node incurrent the highest number of NUMA faults. When the balancer
is comparing two CPU it will prefer to locate tasks on their
preferred node.
Patch 6 reschedules a task when a preferred node is selected if it is not
running on that node already. This avoids waiting for the scheduler
to move the task slowly.
Patch 7 splits the accounting of faults between those that passed the
two-stage filter and those that did not. Task placement favours
the filtered faults initially although ultimately this will need
more smarts when node-local faults do not dominate.
Patch 8 replaces PTE scanning reset hammer and instread increases the
scanning rate when an otherwise settled task changes its
preferred node.
This is SpecJBB running on a 4-socket machine with THP enabled and one JVM
running for the whole system.
3.9.0 3.9.0
vanilla resetscan-v1r29
TPut 1 24770.00 ( 0.00%) 24735.00 ( -0.14%)
TPut 2 54639.00 ( 0.00%) 55727.00 ( 1.99%)
TPut 3 88338.00 ( 0.00%) 87322.00 ( -1.15%)
TPut 4 115379.00 ( 0.00%) 115912.00 ( 0.46%)
TPut 5 143165.00 ( 0.00%) 142017.00 ( -0.80%)
TPut 6 170256.00 ( 0.00%) 171133.00 ( 0.52%)
TPut 7 194410.00 ( 0.00%) 200601.00 ( 3.18%)
TPut 8 225864.00 ( 0.00%) 225518.00 ( -0.15%)
TPut 9 248977.00 ( 0.00%) 251078.00 ( 0.84%)
TPut 10 274911.00 ( 0.00%) 275088.00 ( 0.06%)
TPut 11 299963.00 ( 0.00%) 305233.00 ( 1.76%)
TPut 12 329709.00 ( 0.00%) 326502.00 ( -0.97%)
TPut 13 347794.00 ( 0.00%) 352284.00 ( 1.29%)
TPut 14 372475.00 ( 0.00%) 375917.00 ( 0.92%)
TPut 15 392596.00 ( 0.00%) 391675.00 ( -0.23%)
TPut 16 405273.00 ( 0.00%) 418292.00 ( 3.21%)
TPut 17 429656.00 ( 0.00%) 438006.00 ( 1.94%)
TPut 18 447152.00 ( 0.00%) 458248.00 ( 2.48%)
TPut 19 453475.00 ( 0.00%) 482686.00 ( 6.44%)
TPut 20 473828.00 ( 0.00%) 494508.00 ( 4.36%)
TPut 21 477896.00 ( 0.00%) 516264.00 ( 8.03%)
TPut 22 502557.00 ( 0.00%) 521956.00 ( 3.86%)
TPut 23 503415.00 ( 0.00%) 545774.00 ( 8.41%)
TPut 24 516095.00 ( 0.00%) 555747.00 ( 7.68%)
TPut 25 515441.00 ( 0.00%) 562987.00 ( 9.22%)
TPut 26 517906.00 ( 0.00%) 562589.00 ( 8.63%)
TPut 27 517312.00 ( 0.00%) 551823.00 ( 6.67%)
TPut 28 511740.00 ( 0.00%) 548546.00 ( 7.19%)
TPut 29 515789.00 ( 0.00%) 552132.00 ( 7.05%)
TPut 30 501366.00 ( 0.00%) 556688.00 ( 11.03%)
TPut 31 509797.00 ( 0.00%) 558124.00 ( 9.48%)
TPut 32 514932.00 ( 0.00%) 553529.00 ( 7.50%)
TPut 33 502227.00 ( 0.00%) 550933.00 ( 9.70%)
TPut 34 509668.00 ( 0.00%) 530995.00 ( 4.18%)
TPut 35 500032.00 ( 0.00%) 539452.00 ( 7.88%)
TPut 36 483231.00 ( 0.00%) 527146.00 ( 9.09%)
TPut 37 493236.00 ( 0.00%) 524913.00 ( 6.42%)
TPut 38 483924.00 ( 0.00%) 521526.00 ( 7.77%)
TPut 39 467308.00 ( 0.00%) 523683.00 ( 12.06%)
TPut 40 461353.00 ( 0.00%) 494697.00 ( 7.23%)
TPut 41 462128.00 ( 0.00%) 513593.00 ( 11.14%)
TPut 42 450428.00 ( 0.00%) 505080.00 ( 12.13%)
TPut 43 444065.00 ( 0.00%) 491715.00 ( 10.73%)
TPut 44 455875.00 ( 0.00%) 473548.00 ( 3.88%)
TPut 45 413063.00 ( 0.00%) 474189.00 ( 14.80%)
TPut 46 421084.00 ( 0.00%) 457423.00 ( 8.63%)
TPut 47 399403.00 ( 0.00%) 450189.00 ( 12.72%)
TPut 48 411438.00 ( 0.00%) 443868.00 ( 7.88%)
Somewhat respectable performance improvement for most numbers of clients.
specjbb Peaks
3.9.0 3.9.0
vanilla resetscan-v1r29
Expctd Warehouse 48.00 ( 0.00%) 48.00 ( 0.00%)
Expctd Peak Bops 399403.00 ( 0.00%) 450189.00 ( 12.72%)
Actual Warehouse 27.00 ( 0.00%) 26.00 ( -3.70%)
Actual Peak Bops 517906.00 ( 0.00%) 562987.00 ( 8.70%)
SpecJBB Bops 8397.00 ( 0.00%) 9059.00 ( 7.88%)
SpecJBB Bops/JVM 8397.00 ( 0.00%) 9059.00 ( 7.88%)
The specjbb score and peak bops are improved. The actual peak warehouse
is lower which is unfortunate.
3.9.0 3.9.0
vanillaresetscan-v1r29
User 44532.91 44541.85
System 145.18 133.87
Elapsed 1667.08 1666.65
System CPU usage is slightly lower so we get higher performance for lower overhead.
3.9.0 3.9.0
vanillaresetscan-v1r29
Minor Faults 1951410 1864310
Major Faults 149 130
Swap Ins 0 0
Swap Outs 0 0
Direct pages scanned 0 0
Kswapd pages scanned 0 0
Kswapd pages reclaimed 0 0
Direct pages reclaimed 0 0
Kswapd efficiency 100% 100%
Kswapd velocity 0.000 0.000
Direct efficiency 100% 100%
Direct velocity 0.000 0.000
Percentage direct scans 0% 0%
Zone normal velocity 0.000 0.000
Zone dma32 velocity 0.000 0.000
Zone dma velocity 0.000 0.000
Page writes by reclaim 0.000 0.000
Page writes file 0 0
Page writes anon 0 0
Page reclaim immediate 0 0
Sector Reads 61964 37260
Sector Writes 23408 17708
Page rescued immediate 0 0
Slabs scanned 0 0
Direct inode steals 0 0
Kswapd inode steals 0 0
Kswapd skipped wait 0 0
THP fault alloc 42876 40951
THP collapse alloc 61 66
THP splits 58 52
THP fault fallback 0 0
THP collapse fail 0 0
Compaction stalls 0 0
Compaction success 0 0
Compaction failures 0 0
Page migrate success 14446025 13710610
Page migrate failure 0 0
Compaction pages isolated 0 0
Compaction migrate scanned 0 0
Compaction free scanned 0 0
Compaction cost 14994 14231
NUMA PTE updates 112474717 106764423
NUMA hint faults 692716 543202
NUMA hint local faults 272512 154250
NUMA pages migrated 14446025 13710610
AutoNUMA cost 4525 3723
Note that there are marginally fewer PTE updates, NUMA hinting faults and
pages migrated again showing we're getting the higher performance for lower overhea
I also ran SpecJBB running on with THP enabled and one JVM running per
NUMA node in the system. It's a lot of data unfortunately.
3.9.0 3.9.0
vanilla resetscan-v1r29
Mean 1 30420.25 ( 0.00%) 30813.00 ( 1.29%)
Mean 2 61628.50 ( 0.00%) 62773.00 ( 1.86%)
Mean 3 89830.25 ( 0.00%) 90780.00 ( 1.06%)
Mean 4 115535.00 ( 0.00%) 115962.50 ( 0.37%)
Mean 5 138453.75 ( 0.00%) 137142.00 ( -0.95%)
Mean 6 157207.75 ( 0.00%) 154942.50 ( -1.44%)
Mean 7 159087.50 ( 0.00%) 158301.75 ( -0.49%)
Mean 8 158453.00 ( 0.00%) 157125.00 ( -0.84%)
Mean 9 156613.75 ( 0.00%) 151507.50 ( -3.26%)
Mean 10 151129.75 ( 0.00%) 146982.25 ( -2.74%)
Mean 11 141945.00 ( 0.00%) 136831.50 ( -3.60%)
Mean 12 136653.75 ( 0.00%) 132907.50 ( -2.74%)
Mean 13 135432.00 ( 0.00%) 130598.50 ( -3.57%)
Mean 14 132629.00 ( 0.00%) 130460.50 ( -1.64%)
Mean 15 127698.00 ( 0.00%) 132509.25 ( 3.77%)
Mean 16 128686.75 ( 0.00%) 130936.25 ( 1.75%)
Mean 17 123666.50 ( 0.00%) 125579.75 ( 1.55%)
Mean 18 121543.75 ( 0.00%) 122923.50 ( 1.14%)
Mean 19 118704.75 ( 0.00%) 127232.00 ( 7.18%)
Mean 20 117251.50 ( 0.00%) 124994.75 ( 6.60%)
Mean 21 114060.25 ( 0.00%) 123165.50 ( 7.98%)
Mean 22 108594.00 ( 0.00%) 116716.00 ( 7.48%)
Mean 23 108471.25 ( 0.00%) 115118.25 ( 6.13%)
Mean 24 110019.25 ( 0.00%) 114149.75 ( 3.75%)
Mean 25 109250.50 ( 0.00%) 112506.75 ( 2.98%)
Mean 26 107827.75 ( 0.00%) 112699.50 ( 4.52%)
Mean 27 104496.25 ( 0.00%) 114260.00 ( 9.34%)
Mean 28 104117.75 ( 0.00%) 114140.75 ( 9.63%)
Mean 29 103018.75 ( 0.00%) 109829.50 ( 6.61%)
Mean 30 104718.00 ( 0.00%) 108194.25 ( 3.32%)
Mean 31 101520.50 ( 0.00%) 108311.25 ( 6.69%)
Mean 32 97662.75 ( 0.00%) 105314.75 ( 7.84%)
Mean 33 101508.50 ( 0.00%) 106076.25 ( 4.50%)
Mean 34 98576.50 ( 0.00%) 111020.50 ( 12.62%)
Mean 35 105180.75 ( 0.00%) 108971.25 ( 3.60%)
Mean 36 101517.00 ( 0.00%) 108781.25 ( 7.16%)
Mean 37 100664.00 ( 0.00%) 109634.50 ( 8.91%)
Mean 38 101012.25 ( 0.00%) 110988.25 ( 9.88%)
Mean 39 101967.00 ( 0.00%) 105927.75 ( 3.88%)
Mean 40 97732.50 ( 0.00%) 110570.00 ( 13.14%)
Mean 41 103773.25 ( 0.00%) 111583.00 ( 7.53%)
Mean 42 105105.00 ( 0.00%) 110321.00 ( 4.96%)
Mean 43 102351.50 ( 0.00%) 107145.75 ( 4.68%)
Mean 44 105980.00 ( 0.00%) 107938.50 ( 1.85%)
Mean 45 111055.00 ( 0.00%) 111159.25 ( 0.09%)
Mean 46 112757.25 ( 0.00%) 114807.00 ( 1.82%)
Mean 47 93706.75 ( 0.00%) 113681.25 ( 21.32%)
Mean 48 106624.00 ( 0.00%) 117423.75 ( 10.13%)
Stddev 1 1371.00 ( 0.00%) 872.33 ( 36.37%)
Stddev 2 1326.07 ( 0.00%) 310.98 ( 76.55%)
Stddev 3 1160.36 ( 0.00%) 1074.95 ( 7.36%)
Stddev 4 1689.80 ( 0.00%) 1461.05 ( 13.54%)
Stddev 5 2214.45 ( 0.00%) 1089.81 ( 50.79%)
Stddev 6 1756.74 ( 0.00%) 2138.00 (-21.70%)
Stddev 7 3419.70 ( 0.00%) 3335.13 ( 2.47%)
Stddev 8 6511.71 ( 0.00%) 4716.75 ( 27.57%)
Stddev 9 5373.19 ( 0.00%) 2899.89 ( 46.03%)
Stddev 10 3732.23 ( 0.00%) 2558.50 ( 31.45%)
Stddev 11 4616.71 ( 0.00%) 5919.34 (-28.22%)
Stddev 12 5503.15 ( 0.00%) 5953.85 ( -8.19%)
Stddev 13 5202.46 ( 0.00%) 7507.23 (-44.30%)
Stddev 14 3526.10 ( 0.00%) 2296.23 ( 34.88%)
Stddev 15 3576.78 ( 0.00%) 3450.47 ( 3.53%)
Stddev 16 2786.08 ( 0.00%) 950.31 ( 65.89%)
Stddev 17 3055.44 ( 0.00%) 2881.78 ( 5.68%)
Stddev 18 2543.08 ( 0.00%) 1332.83 ( 47.59%)
Stddev 19 3936.65 ( 0.00%) 1403.64 ( 64.34%)
Stddev 20 3005.94 ( 0.00%) 1342.59 ( 55.34%)
Stddev 21 2657.19 ( 0.00%) 2498.95 ( 5.96%)
Stddev 22 2016.42 ( 0.00%) 2078.84 ( -3.10%)
Stddev 23 2209.88 ( 0.00%) 2939.24 (-33.00%)
Stddev 24 5325.86 ( 0.00%) 2760.85 ( 48.16%)
Stddev 25 4659.26 ( 0.00%) 1433.24 ( 69.24%)
Stddev 26 1169.78 ( 0.00%) 1977.32 (-69.03%)
Stddev 27 2923.78 ( 0.00%) 2675.50 ( 8.49%)
Stddev 28 5335.85 ( 0.00%) 1874.29 ( 64.87%)
Stddev 29 4381.68 ( 0.00%) 3660.16 ( 16.47%)
Stddev 30 3437.44 ( 0.00%) 6535.20 (-90.12%)
Stddev 31 3979.56 ( 0.00%) 5032.62 (-26.46%)
Stddev 32 2614.04 ( 0.00%) 5118.99 (-95.83%)
Stddev 33 5358.35 ( 0.00%) 2488.64 ( 53.56%)
Stddev 34 6375.57 ( 0.00%) 4105.34 ( 35.61%)
Stddev 35 8079.76 ( 0.00%) 3696.10 ( 54.25%)
Stddev 36 8665.59 ( 0.00%) 5155.29 ( 40.51%)
Stddev 37 8002.37 ( 0.00%) 8660.12 ( -8.22%)
Stddev 38 4955.36 ( 0.00%) 8615.78 (-73.87%)
Stddev 39 9940.79 ( 0.00%) 9620.33 ( 3.22%)
Stddev 40 12344.56 ( 0.00%) 11248.42 ( 8.88%)
Stddev 41 15834.32 ( 0.00%) 13587.05 ( 14.19%)
Stddev 42 12006.48 ( 0.00%) 10554.10 ( 12.10%)
Stddev 43 4141.73 ( 0.00%) 13565.76 (-227.54%)
Stddev 44 7476.54 ( 0.00%) 16442.62 (-119.92%)
Stddev 45 16048.04 ( 0.00%) 17095.94 ( -6.53%)
Stddev 46 16198.20 ( 0.00%) 17323.97 ( -6.95%)
Stddev 47 15743.04 ( 0.00%) 17748.58 (-12.74%)
Stddev 48 12627.98 ( 0.00%) 17082.27 (-35.27%)
These are the mean throughput figures between JVMs and the standard
deviation. Note that with the patches applied that there is a lot less
deviation between JVMs in many cases. As the number of clients increases
the performance improves. This is still far short of the theoritical best
performance but it's a step in the right direction.
TPut 1 121681.00 ( 0.00%) 123252.00 ( 1.29%)
TPut 2 246514.00 ( 0.00%) 251092.00 ( 1.86%)
TPut 3 359321.00 ( 0.00%) 363120.00 ( 1.06%)
TPut 4 462140.00 ( 0.00%) 463850.00 ( 0.37%)
TPut 5 553815.00 ( 0.00%) 548568.00 ( -0.95%)
TPut 6 628831.00 ( 0.00%) 619770.00 ( -1.44%)
TPut 7 636350.00 ( 0.00%) 633207.00 ( -0.49%)
TPut 8 633812.00 ( 0.00%) 628500.00 ( -0.84%)
TPut 9 626455.00 ( 0.00%) 606030.00 ( -3.26%)
TPut 10 604519.00 ( 0.00%) 587929.00 ( -2.74%)
TPut 11 567780.00 ( 0.00%) 547326.00 ( -3.60%)
TPut 12 546615.00 ( 0.00%) 531630.00 ( -2.74%)
TPut 13 541728.00 ( 0.00%) 522394.00 ( -3.57%)
TPut 14 530516.00 ( 0.00%) 521842.00 ( -1.64%)
TPut 15 510792.00 ( 0.00%) 530037.00 ( 3.77%)
TPut 16 514747.00 ( 0.00%) 523745.00 ( 1.75%)
TPut 17 494666.00 ( 0.00%) 502319.00 ( 1.55%)
TPut 18 486175.00 ( 0.00%) 491694.00 ( 1.14%)
TPut 19 474819.00 ( 0.00%) 508928.00 ( 7.18%)
TPut 20 469006.00 ( 0.00%) 499979.00 ( 6.60%)
TPut 21 456241.00 ( 0.00%) 492662.00 ( 7.98%)
TPut 22 434376.00 ( 0.00%) 466864.00 ( 7.48%)
TPut 23 433885.00 ( 0.00%) 460473.00 ( 6.13%)
TPut 24 440077.00 ( 0.00%) 456599.00 ( 3.75%)
TPut 25 437002.00 ( 0.00%) 450027.00 ( 2.98%)
TPut 26 431311.00 ( 0.00%) 450798.00 ( 4.52%)
TPut 27 417985.00 ( 0.00%) 457040.00 ( 9.34%)
TPut 28 416471.00 ( 0.00%) 456563.00 ( 9.63%)
TPut 29 412075.00 ( 0.00%) 439318.00 ( 6.61%)
TPut 30 418872.00 ( 0.00%) 432777.00 ( 3.32%)
TPut 31 406082.00 ( 0.00%) 433245.00 ( 6.69%)
TPut 32 390651.00 ( 0.00%) 421259.00 ( 7.84%)
TPut 33 406034.00 ( 0.00%) 424305.00 ( 4.50%)
TPut 34 394306.00 ( 0.00%) 444082.00 ( 12.62%)
TPut 35 420723.00 ( 0.00%) 435885.00 ( 3.60%)
TPut 36 406068.00 ( 0.00%) 435125.00 ( 7.16%)
TPut 37 402656.00 ( 0.00%) 438538.00 ( 8.91%)
TPut 38 404049.00 ( 0.00%) 443953.00 ( 9.88%)
TPut 39 407868.00 ( 0.00%) 423711.00 ( 3.88%)
TPut 40 390930.00 ( 0.00%) 442280.00 ( 13.14%)
TPut 41 415093.00 ( 0.00%) 446332.00 ( 7.53%)
TPut 42 420420.00 ( 0.00%) 441284.00 ( 4.96%)
TPut 43 409406.00 ( 0.00%) 428583.00 ( 4.68%)
TPut 44 423920.00 ( 0.00%) 431754.00 ( 1.85%)
TPut 45 444220.00 ( 0.00%) 444637.00 ( 0.09%)
TPut 46 451029.00 ( 0.00%) 459228.00 ( 1.82%)
TPut 47 374827.00 ( 0.00%) 454725.00 ( 21.32%)
TPut 48 426496.00 ( 0.00%) 469695.00 ( 10.13%)
Similarly overall throughput is improved for larger numbers of clients.
specjbb Peaks
3.9.0 3.9.0
vanilla resetscan-v1r29
Expctd Warehouse 12.00 ( 0.00%) 12.00 ( 0.00%)
Expctd Peak Bops 567780.00 ( 0.00%) 547326.00 ( -3.60%)
Actual Warehouse 8.00 ( 0.00%) 8.00 ( 0.00%)
Actual Peak Bops 636350.00 ( 0.00%) 633207.00 ( -0.49%)
SpecJBB Bops 487204.00 ( 0.00%) 500705.00 ( 2.77%)
SpecJBB Bops/JVM 121801.00 ( 0.00%) 125176.00 ( 2.77%)
Peak performance is not great but the specjbb score is slightly improved.
3.9.0 3.9.0
vanillaresetscan-v1r29
User 479120.95 479525.04
System 1395.40 1124.93
Elapsed 10363.40 10376.34
System CPU time is reduced by quite a lot so automatic NUMA balancing now has less overhead.
3.9.0 3.9.0
vanillaresetscan-v1r29
Minor Faults 15711256 14962529
Major Faults 132 151
Swap Ins 0 0
Swap Outs 0 0
Direct pages scanned 0 0
Kswapd pages scanned 0 0
Kswapd pages reclaimed 0 0
Direct pages reclaimed 0 0
Kswapd efficiency 100% 100%
Kswapd velocity 0.000 0.000
Direct efficiency 100% 100%
Direct velocity 0.000 0.000
Percentage direct scans 0% 0%
Zone normal velocity 0.000 0.000
Zone dma32 velocity 0.000 0.000
Zone dma velocity 0.000 0.000
Page writes by reclaim 0.000 0.000
Page writes file 0 0
Page writes anon 0 0
Page reclaim immediate 0 0
Sector Reads 32700 67420
Sector Writes 108660 116092
Page rescued immediate 0 0
Slabs scanned 0 0
Direct inode steals 0 0
Kswapd inode steals 0 0
Kswapd skipped wait 0 0
THP fault alloc 77041 76063
THP collapse alloc 194 208
THP splits 430 428
THP fault fallback 0 0
THP collapse fail 0 0
Compaction stalls 0 0
Compaction success 0 0
Compaction failures 0 0
Page migrate success 134743458 102408111
Page migrate failure 0 0
Compaction pages isolated 0 0
Compaction migrate scanned 0 0
Compaction free scanned 0 0
Compaction cost 139863 106299
NUMA PTE updates 1167722150 961427213
NUMA hint faults 9915871 8411075
NUMA hint local faults 3660769 3212050
NUMA pages migrated 134743458 102408111
AutoNUMA cost 60313 50731
Note that there are 20% fewer PTE updates reflecting the changes in the
scan rates. Similarly there are fewer hinting faults incurred and fewer
pages migrated.
Overall the performance has improved slightly but in general there is
less system overhead when delivering that performance so it's at least
a step in the right direction albeit far short of what it needs to be
ultimately.
Documentation/sysctl/kernel.txt | 67 ++++++++++++++++
include/linux/mm_types.h | 3 -
include/linux/sched.h | 21 ++++-
include/linux/sched/sysctl.h | 1 -
kernel/sched/core.c | 33 +++++++-
kernel/sched/fair.c | 169 +++++++++++++++++++++++++++++++++++-----
kernel/sched/sched.h | 12 +++
kernel/sysctl.c | 14 ++--
mm/huge_memory.c | 7 +-
mm/memory.c | 9 ++-
10 files changed, 294 insertions(+), 42 deletions(-)
--
1.8.1.4
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