On Tue, Feb 24, 2026 at 11:48 AM Nathan Bossart <[email protected]> wrote:
> On Tue, Feb 24, 2026 at 04:57:21PM +0300, Nazir Bilal Yavuz wrote: > > I will investigate this. However, please note that the current master > > includes the inlining commit (dc592a4155), which makes the COPY FROM > > faster. In my case, > > > > 1: current master without dc592a4155: 14400ms > > 2: current master: 13960ms (%3 improvement against #1) > > 3: current master + SIMD: 15123ms (%5 regression against #1 and %8 > > regression against #2) > > > > Is it possible for you to do a similar test? I mean dropping > > dc592a4155 from the current master and re-running the benchmark, that > > would be helpful. > > IMHO as long as the difference from v18 looks reasonable, commit-by-commit > regressions and improvements that even out in the end are okay. That's > perhaps a bit of mental gymnastics (e.g., what if we had committed the > inlining patch for v18?), but I believe that's how we've dealt with similar > problems in the past. But maybe there are ways to avoid even these > in-development regressions, too... > > -- > nathan > Oh yes, I see now. Commit 18bcdb75 is just before the v9 patch got applied, so I used that as "old master" and compared that with master (v9 applied) and then "master (v9 applied) + v10 applied". arm NARROW old master 18bcdb75 TXT : 10997.568250 ms CSV : 10797.549000 ms TXT with 1/3 escapes: 10299.047000 ms CSV with 1/3 quotes: 12559.385750 ms arm NARROW master (v9 applied) TXT : 10077.096250 ms 8.369778% improvement CSV : 10310.671250 ms 4.509151% improvement TXT with 1/3 escapes: 9893.155000 ms 3.941064% improvement CSV with 1/3 quotes: 12133.064750 ms 3.394441% improvement arm NARROW v10 TXT : 10467.816750 ms 4.816988% improvement CSV : 9986.288000 ms 7.513381% improvement TXT with 1/3 escapes: 10323.173750 ms -0.234262% regression CSV with 1/3 quotes: 11843.611750 ms 5.699116% improvement arm WIDE old master 18bcdb75 TXT : 11825.771250 ms CSV : 13907.074000 ms TXT with 1/3 escapes: 13430.691250 ms CSV with 1/3 quotes: 17557.954500 ms arm WIDE master (v9 applied) TXT : 10568.344750 ms 10.632934% improvement CSV : 13046.610500 ms 6.187236% improvement TXT with 1/3 escapes: 12193.088500 ms 9.214736% improvement CSV with 1/3 quotes: 16629.319000 ms 5.288973% improvement arm WIDE v10 TXT : 9064.959000 ms 23.345727% improvement CSV : 9019.553250 ms 35.144134% improvement TXT with 1/3 escapes: 12344.497250 ms 8.087402% improvement CSV with 1/3 quotes: 15495.863750 ms 11.744482% improvement x86 NARROW old master 18bcdb75 TXT : 25909.060500 ms CSV : 28137.591250 ms TXT with 1/3 escapes: 27794.177000 ms CSV with 1/3 quotes: 34541.704750 ms x86 NARROW master TXT : 26359.319000 ms -1.737842% regression CSV : 25661.199750 ms 8.801007% improvement TXT with 1/3 escapes: 28170.085250 ms -1.352471% regression CSV with 1/3 quotes: 32638.147500 ms 5.510895% improvement x86 NARROW v10 TXT : 26416.331500 ms -1.957890% regression CSV : 25318.727500 ms 10.018142% improvement TXT with 1/3 escapes: 28608.007500 ms -2.928061% regression CSV with 1/3 quotes: 32805.627750 ms 5.026032% improvement x86 WIDE old master 18bcdb75 TXT : 28778.426500 ms CSV : 35671.908000 ms TXT with 1/3 escapes: 32441.549750 ms CSV with 1/3 quotes: 47024.416000 ms x86 WIDE master TXT : 26475.164250 ms 8.003434% improvement CSV : 31963.478500 ms 10.395938% improvement TXT with 1/3 escapes: 29671.120750 ms 8.539755% improvement CSV with 1/3 quotes: 40391.616250 ms 14.105012% improvement x86 WIDE v10 TXT : 23067.046750 ms 19.846046% improvement CSV : 23259.092250 ms 34.797174% improvement TXT with 1/3 escapes: 31796.098250 ms 1.989583% improvement CSV with 1/3 quotes: 42925.792250 ms 8.715948% improvement -- -- Manni Wood EDB: https://www.enterprisedb.com
