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Re: kmem-pool-uvm
hi,
> Hi,
>
> i uploaded a new version of the kmem-pool-vmem-uvm patch:
> ftp://ftp.netbsd.org/pub/NetBSD/misc/para/kmem-pool-vmem-uvm.patch
thanks for working on this.
can you provide a patch with diff -up?
have you done benchmarks? eg. src/regress/sys/kern/allocfree
i'm a little concerned about IPL_VM mutex overhead for kmem_alloc.
YAMAMOTO Takashi
>
> vmem(9) is now in charge for controlling the entire kernel heap,
> vmem_create is split into vmem_create and vmem_xcreate with different
> import function signatures, this allows the use of vmem_alloc as an
> import function.
> vmem has two private arenas for it's internal purposes.
>
> special kernel map entry support is removed, it's not required anymore
> as well as map entry reservation not required any more as well.
>
> pool(9) kmem(9) are now both backed by a quantum cached arena.
> malloc(9) is replaced by small wrapper around kmem(9)
>
> This is what my kernel_map looks like after having made a release build:
> (8gb amd64)
>
> $ pmap -R 0
>
> FFFF800000000000 239364K read/write/exec [ anon ]
> FFFF80000E9C1000 4067176K read/write/exec [ anon ]
> FFFF800106D9B000 16384K read/write/exec [ pager_map ]
> FFFF800107D9B000 96K read/write/exec [ anon ]
> FFFF800107DB3000 1200K read/write/exec [ phys_map ]
> FFFF800107EDF000 8196K read/write/exec [ anon ]
> FFFF8001086E0000 8192K read/write/exec [ ubc_pager ]
> FFFF800108EE0000 68K read/write/exec [ anon ]
> FFFF800108EF1000 2816K read/write/exec [ uvm_aobj ]
> total 4343492K
>
> The "big" entry in the second line thats the heap controlled by vmem.
>
> no failed allocations any more due to allocation while map locked etc
>
> $ vmstat -mv
>
> vmstat: Kmem statistics are not being gathered by the kernel.
> Memory resource pool statistics
> Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg
> Maxpg Idle
> aio_jobs_pool 128 0 0 0 0 0 0 0 0
> inf 0
> aio_lio_pool 40 0 0 0 0 0 0 0 0
> inf 0
> amappl 80 2636 0 0 53 0 53 53 0
> inf 0
> anonpl 32 274412 0 0 2178 0 2178 2178 0
> inf 0
> ataspl 96 692473 0 692473 1 0 1 1 0
> inf 1
> biopl 280 4023 0 0 288 0 288 288 0
> inf 0
> brtpl 56 0 0 0 0 0 0 0 0
> inf 0
> buf16k 16384 28091 0 4746 5990 153 5837 5837 1
> 1 0
> buf1k 1024 0 0 0 1 0 1 1 1
> 1 1
> buf2k 2048 179497 0 5924 5434 9 5425 5425 1
> 1 0
> buf32k 32768 0 0 0 1 0 1 1 1
> 1 1
> buf4k 4096 2745 0 1274 102 8 94 94 1
> 1 0
> buf512b 512 0 0 0 1 0 1 1 1
> 1 1
> buf64k 65536 0 0 0 1 0 1 1 1
> 1 1
> buf8k 8192 1504 0 726 129 29 100 100 1
> 1 0
> bufpl 280 199167 0 0 14227 0 14227 14227 0
> inf 0
> cryptkop 352 0 0 0 0 0 0 0 0
> inf 0
> cryptodesc 72 0 0 0 0 0 0 0 0
> inf 0
> cryptop 272 0 0 0 0 0 0 0 0
> inf 0
> csepl 208 0 0 0 17 0 17 17 17
> inf 17
> cwdi 64 173 0 0 3 0 3 3 0
> inf 0
> execargs 262144 710463 0 710463 4 0 4 4 0
> 16 4
> extent 40 0 0 0 0 0 0 0 0
> inf 0
> fcrpl 168 0 0 0 3 0 3 3 3
> inf 3
> fdfile 64 2549 0 0 41 0 41 41 0
> inf 0
> ffsdino1 128 419052 0 0 13518 0 13518 13518 0
> inf 0
> ffsdino2 256 0 0 0 0 0 0 0 0
> inf 0
> ffsino 256 419056 0 0 26191 0 26191 26191 0
> inf 0
> file 128 281 0 0 10 0 10 10 0
> inf 0
> filedesc 832 173 0 0 44 0 44 44 0
> inf 0
> fstrans 32 154 0 0 2 0 2 2 0
> inf 0
> igmppl 32 0 0 0 0 0 0 0 0
> inf 0
> in6pcbpl 232 155 0 144 1 0 1 1 0
> inf 0
> inmltpl 48 3 0 0 1 0 1 1 0
> inf 0
> inpcbpl 192 172 0 162 1 0 1 1 0
> inf 0
> ipfrenpl 64 0 0 0 0 0 0 0 0
> inf 0
> kcpuset 64 1 0 0 1 0 1 1 0
> inf 0
> kcredpl 192 70 0 0 4 0 4 4 0
> inf 0
> kmem-1024 1024 2370 0 0 593 0 593 593 0
> inf 0
> kmem-112 112 894 0 0 25 0 25 25 0
> inf 0
> kmem-128 128 1334 0 0 42 0 42 42 0
> inf 0
> kmem-16 16 988 0 0 4 0 4 4 0
> inf 0
> kmem-160 160 214 0 0 9 0 9 9 0
> inf 0
> kmem-192 192 191 0 0 10 0 10 10 0
> inf 0
> kmem-2048 2048 1225 0 0 613 0 613 613 0
> inf 0
> kmem-224 224 85 0 0 5 0 5 5 0
> inf 0
> kmem-24 24 232 0 0 2 0 2 2 0
> inf 0
> kmem-256 256 123 0 0 8 0 8 8 0
> inf 0
> kmem-32 32 486 0 0 4 0 4 4 0
> inf 0
> kmem-320 320 285 0 0 24 0 24 24 0
> inf 0
> kmem-384 384 328 0 0 33 0 33 33 0
> inf 0
> kmem-40 40 4810 0 0 48 0 48 48 0
> inf 0
> kmem-4096 4096 55 0 0 55 0 55 55 0
> inf 0
> kmem-448 448 127 0 0 15 0 15 15 0
> inf 0
> kmem-48 48 1021 0 0 13 0 13 13 0
> inf 0
> kmem-512 512 97 0 0 13 0 13 13 0
> inf 0
> kmem-56 56 306 0 0 5 0 5 5 0
> inf 0
> kmem-64 64 4264 0 0 67 0 67 67 0
> inf 0
> kmem-768 768 245 0 0 49 0 49 49 0
> inf 0
> kmem-8 8 790 0 0 2 0 2 2 0
> inf 0
> kmem-80 80 2021 0 0 40 0 40 40 0
> inf 0
> kmem-96 96 200 0 0 5 0 5 5 0
> inf 0
> ksiginfo 72 83 0 0 2 0 2 2 0
> inf 0
> ktrace 120 0 0 0 0 0 0 0 0
> inf 0
> kva-12288 12288 223 0 0 11 0 11 11 0
> inf 0
> kva-16384 16384 17 0 0 2 0 2 2 0
> inf 0
> kva-20480 20480 13 0 0 2 0 2 2 0
> inf 0
> kva-24576 24576 1 0 0 1 0 1 1 0
> inf 0
> kva-28672 28672 1 0 0 1 0 1 1 0
> inf 0
> kva-32768 32768 1 0 0 1 0 1 1 0
> inf 0
> kva-36864 36864 2 0 0 1 0 1 1 0
> inf 0
> kva-4096 4096 118955 0 0 1859 0 1859 1859 0
> inf 0
> kva-40960 40960 0 0 0 0 0 0 0 0
> inf 0
> kva-49152 49152 1 0 0 1 0 1 1 0
> inf 0
> kva-65536 65536 11462 0 0 2866 0 2866 2866 0
> inf 0
> kva-8192 8192 112 0 0 4 0 4 4 0
> inf 0
> lockf 112 12 0 0 1 0 1 1 0
> inf 0
> lwppl 1056 217 0 0 73 0 73 73 0
> inf 0
> mbpl 512 153 0 0 22 0 22 22 2
> inf 2
> mclpl 2048 149 0 0 79 0 79 79 4
> 65536 4
> mqmsgpl 1024 0 0 0 0 0 0 0 0
> inf 0
> mutex 64 422019 0 0 6699 0 6699 6699 0
> inf 0
> ncache 192 419038 0 0 19955 0 19955 19955 0
> inf 0
> pcache 896 59 0 0 15 0 15 15 0
> inf 0
> pcachecpu 64 237 0 0 4 0 4 4 0
> inf 0
> pcglarge 1024 4852 0 0 1213 0 1213 1213 0
> inf 0
> pcgnormal 256 7359 0 0 460 0 460 460 0
> inf 0
> pdict128 184 0 0 0 0 0 0 0 0
> inf 0
> pdict16 72 24 0 8 1 0 1 1 0
> inf 0
> pdict32 88 10 0 2 1 0 1 1 0
> inf 0
> pdppl 4096 168 0 0 168 0 168 168 0
> inf 0
> pewpl 24 0 0 0 1 0 1 1 1
> 1 1
> phpool-0 56 41440 0 199 573 0 573 573 0
> inf 0
> phpool-1024 176 0 0 0 0 0 0 0 0
> inf 0
> phpool-128 64 70 0 0 2 0 2 2 0
> inf 0
> phpool-2048 304 0 0 0 0 0 0 0 0
> inf 0
> phpool-256 80 6 0 0 1 0 1 1 0
> inf 0
> phpool-4096 560 0 0 0 0 0 0 0 0
> inf 0
> phpool-512 112 2 0 0 1 0 1 1 0
> inf 0
> phpool-64 56 4970 0 0 70 0 70 70 0
> inf 0
> piperd 320 112 0 0 10 0 10 10 0
> inf 0
> pipewr 320 119 0 0 10 0 10 10 0
> inf 0
> plimitpl 216 123 0 0 7 0 7 7 0
> inf 0
> pmappl 392 168 0 0 17 0 17 17 0
> inf 0
> pnbufpl 1024 72 0 0 18 0 18 18 0
> inf 0
> procpl 656 161 0 0 27 0 27 27 0
> inf 0
> proparay 48 0 0 0 0 0 0 0 0
> inf 0
> propdata 40 0 0 0 0 0 0 0 0
> inf 0
> propdict 48 196 0 24 3 0 3 3 0
> inf 0
> propnmbr 56 26 0 7 1 0 1 1 0
> inf 0
> propstng 40 269 0 11 3 0 3 3 0
> inf 0
> pstatspl 448 161 0 0 18 0 18 18 0
> inf 0
> ptimerpl 264 11 0 5 1 0 1 1 0
> inf 0
> ptimerspl 280 11 0 5 1 0 1 1 0
> inf 0
> pvpl 40 38951 0 0 386 0 386 386 0
> inf 0
> ractx 32 68471 0 0 544 0 544 544 0
> inf 0
> rndsample 536 10808 0 10804 1 0 1 1 0
> inf 0
> rtentpl 272 27 0 0 2 0 2 2 0
> inf 0
> rttmrpl 64 0 0 0 0 0 0 0 0
> inf 0
> rwlock 64 0 0 0 0 0 0 0 0
> inf 0
> sackholepl 32 0 0 0 0 0 0 0 0
> inf 0
> sigacts 3088 173 0 0 173 0 173 173 0
> inf 0
> socket 584 41 0 0 6 0 6 6 0
> inf 0
> swp vnd 288 0 0 0 0 0 0 0 0
> inf 0
> swp vnx 32 0 0 0 0 0 0 0 0
> inf 0
> synpl 280 1 0 1 1 0 1 1 0
> inf 1
> tcpcbpl 792 17 0 12 2 0 2 2 0
> inf 1
> tcpipqepl 80 0 0 0 0 0 0 0 0
> inf 0
> tstilepl 96 217 0 0 6 0 6 6 0
> inf 0
> uaoeltpl 96 0 0 0 0 0 0 0 0
> inf 0
> uarea 12288 217 0 0 217 0 217 217 0
> inf 0
> ufsdir 264 4 0 0 1 0 1 1 0
> inf 0
> vmmpepl 136 5583 0 0 193 0 193 193 0
> inf 0
> vmsppl 368 168 0 0 16 0 16 16 0
> inf 0
> vnodepl 296 419079 0 0 32237 0 32237 32237 0
> inf 0
> wapblinopl 32 752908 0 752888 1 0 1 1 0
> inf 0
>
> In use 1206022K, total allocated 1224292K; utilization 98.5%
>
>
> kind regards,
> Lars
>
>
> - --
> - ------------------------------------
>
> Mystische Erkldrungen:
> Die mystischen Erkldrungen gelten f|r tief;
> die Wahrheit ist, dass sie noch nicht einmal oberfldchlich sind.
>
> -- Friedrich Nietzsche
> [ Die Frvhliche Wissenschaft Buch 3, 126 ]
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