Re: mec(4) TX improvement and mbuf statistics
Martin Husemann <[email protected]>
| Newsgroups | gmane.os.netbsd.ports.sgimips |
|---|---|
| Message-ID | <[email protected]> |
Here are my results with your patch (and the cpuflags you suggested, on both machines) Martin On a R10K O2: tequila-sunrise# ttcp -ts -n 10000 porter ttcp-t: buflen=8192, nbuf=10000, align=16384/0, port=5001 tcp -> porter ttcp-t: socket ttcp-t: connect ttcp-t: 81920000 bytes in 8.29 real seconds = 9654.47 KB/sec +++ ttcp-t: 10000 I/O calls, msec/call = 0.85, calls/sec = 1206.81 ttcp-t: 0.0user 5.7sys 0:08real 69% 0i+0d 0maxrss 0+1pf 2527+18csw tequila-sunrise# ttcp -tsu -n 10000 porter ttcp-t: buflen=8192, nbuf=10000, align=16384/0, port=5001 udp -> porter ttcp-t: socket ttcp-t: 81920000 bytes in 6.81 real seconds = 11744.30 KB/sec +++ ttcp-t: 10080 I/O calls, msec/call = 0.69, calls/sec = 1479.78 ttcp-t: 0.0user 4.8sys 0:06real 71% 0i+0d 0maxrss 0+1pf 74+20csw mec0 TX pkts queued total 296540 346 misc mec0 TX pkts padded in txdesc buf 23 0 misc mec0 TX pkts copied to txdesc buf 480 0 misc mec0 TX pkts using concat ptr1 92855 108 misc mec0 TX pkts w/ptr1 ~160bytes 109 0 misc mec0 TX pkts w/ptr1 ~256bytes 107 0 misc mec0 TX pkts w/ptr1 ~512bytes 18 0 misc mec0 TX pkts w/ptr1 ~1024bytes 45 0 misc mec0 TX pkts w/ptr1 >1024bytes 92578 108 misc mec0 TX pkts using concat ptr1,2 179451 209 misc mec0 TX pkts w/ptr2 ~160bytes 221 0 misc mec0 TX pkts w/ptr2 ~256bytes 2281 2 misc mec0 TX pkts w/ptr2 ~512bytes 34 0 misc mec0 TX pkts w/ptr2 ~1024bytes 30001 35 misc mec0 TX pkts w/ptr2 >1024bytes 146914 171 misc mec0 TX pkts using concat ptr1,2,3 8596 10 misc mec0 TX pkts w/ptr3 ~512bytes 12 0 misc mec0 TX pkts w/ptr3 ~1024bytes 48 0 misc mec0 TX pkts w/ptr3 >1024bytes 8536 9 misc mec0 TX pkts copied to new mbufs 15138 17 misc mec0 TX pkts w/mbuf ~1024bytes 2 0 misc mec0 TX pkts w/mbuf >1024bytes 15136 17 misc mec0 TX pkts using ptrs total 280921 327 misc mec0 TX pkts w/ptrs no hdr chain 220 0 misc mec0 TX pkts w/ptrs 1 hdr chain 280110 326 misc mec0 TX pkts w/ptrs 2 hdr chains 592 0 misc mec0 TX pkts w/ptrs ~8bytes hdr 223 0 misc mec0 TX pkts w/ptrs ~32bytes hdr 30002 35 misc mec0 TX pkts w/ptrs ~64bytes hdr 152544 177 misc mec0 TX pkts w/ptrs ~80bytes hdr 97818 114 misc mec0 TX pkts w/ptrs ~96bytes hdr 338 0 misc mec0 TX stalled due to no txdesc 22319 26 misc mec0 TX empty interrupts 22491 26 misc mec0 TX sent interrupts 22462 26 misc On a R5K O2: red-moon# ttcp -ts -n 10000 porter ttcp-t: buflen=8192, nbuf=10000, align=16384/0, port=5001 tcp -> porter ttcp-t: socket ttcp-t: connect ttcp-t: 81920000 bytes in 8.27 real seconds = 9677.16 KB/sec +++ ttcp-t: 10000 I/O calls, msec/call = 0.85, calls/sec = 1209.64 ttcp-t: 0.0user 4.9sys 0:08real 59% 0i+0d 0maxrss 0+1pf 2529+13csw red-moon# ttcp -tsu -n 10000 porter ttcp-t: buflen=8192, nbuf=10000, align=16384/0, port=5001 udp -> porter ttcp-t: socket ttcp-t: 81920000 bytes in 6.81 real seconds = 11747.68 KB/sec +++ ttcp-t: 10141 I/O calls, msec/call = 0.69, calls/sec = 1489.17 ttcp-t: 0.0user 3.2sys 0:06real 48% 0i+0d 0maxrss 0+1pf 135+15csw mec0 TX pkts queued total 119472 113 misc mec0 TX pkts padded in txdesc buf 11 0 misc mec0 TX pkts copied to txdesc buf 299 0 misc mec0 TX pkts using concat ptr1 38231 36 misc mec0 TX pkts w/ptr1 ~160bytes 41 0 misc mec0 TX pkts w/ptr1 ~256bytes 46 0 misc mec0 TX pkts w/ptr1 ~512bytes 4 0 misc mec0 TX pkts w/ptr1 ~1024bytes 32 0 misc mec0 TX pkts w/ptr1 >1024bytes 38110 36 misc mec0 TX pkts using concat ptr1,2 77754 73 misc mec0 TX pkts w/ptr2 ~160bytes 215 0 misc mec0 TX pkts w/ptr2 ~256bytes 2246 2 misc mec0 TX pkts w/ptr2 ~512bytes 7 0 misc mec0 TX pkts w/ptr2 ~1024bytes 10000 9 misc mec0 TX pkts w/ptr2 >1024bytes 65286 61 misc mec0 TX pkts using concat ptr1,2,3 921 0 misc mec0 TX pkts w/ptr3 ~512bytes 2 0 misc mec0 TX pkts w/ptr3 ~1024bytes 1 0 misc mec0 TX pkts w/ptr3 >1024bytes 918 0 misc mec0 TX pkts copied to new mbufs 2259 2 misc mec0 TX pkts w/mbuf ~1024bytes 2 0 misc mec0 TX pkts w/mbuf >1024bytes 2257 2 misc mec0 TX pkts using ptrs total 116925 110 misc mec0 TX pkts w/ptrs no hdr chain 101 0 misc mec0 TX pkts w/ptrs 1 hdr chain 116410 110 misc mec0 TX pkts w/ptrs 2 hdr chains 415 0 misc mec0 TX pkts w/ptrs ~8bytes hdr 104 0 misc mec0 TX pkts w/ptrs ~32bytes hdr 10001 9 misc mec0 TX pkts w/ptrs ~64bytes hdr 52465 49 misc mec0 TX pkts w/ptrs ~80bytes hdr 54148 51 misc mec0 TX pkts w/ptrs ~96bytes hdr 211 0 misc mec0 TX stalled due to no txdesc 7470 7 misc mec0 TX empty interrupts 6869 6 misc mec0 TX sent interrupts 7498 7 misc