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Subject: bug#62395: [PATCH] Tunable guile@HIDDEN package
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From: "Dr. Arne Babenhauserheide" <arne_bab@HIDDEN>
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--=-=-=
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Hi,
The attached patch adds a guile@HIDDEN package that enables CPU
architecture tuning for Guile and for a specialized libgc.
It creates new packages to avoid causing rebuilds.
--=-=-=
Content-Type: text/x-patch
Content-Disposition: inline;
filename=0001-gnu-create-tunable-guile-3.0.9t-that-uses-tunable-bd.patch
Content-Transfer-Encoding: quoted-printable
From=20fbde1198a2386874e059faf8b3afdd09288bc7aa Mon Sep 17 00:00:00 2001
From: Arne Babenhauserheide <arne_bab@HIDDEN>
Date: Wed, 22 Mar 2023 18:32:08 +0100
Subject: [PATCH] gnu: create tunable guile@HIDDEN that uses tunable bdw-gc
* gnu/packages/bdw-gc.scm (libgc/tunable): new derived package with
(tunable? . #t) property.
* gnu/packages/guile.scm (guile-3.0-latest/tunable): new derived package
with (tunable? . #t) property that uses libgc/tunable as propagated input.
=2D--
gnu/packages/bdw-gc.scm | 8 ++++++++
gnu/packages/guile.scm | 22 ++++++++++++++++++++++
2 files changed, 30 insertions(+)
diff --git a/gnu/packages/bdw-gc.scm b/gnu/packages/bdw-gc.scm
index ae0d761ac3..a5a58da877 100644
=2D-- a/gnu/packages/bdw-gc.scm
+++ b/gnu/packages/bdw-gc.scm
@@ -96,6 +96,14 @@ (define-public libgc
=20
(license (x11-style (string-append home-page "license.txt")))))
=20
+(define-public libgc/tunable
+ (package
+ (inherit libgc)
+ (properties
+ '((release-monitoring-url . "https://www.hboehm.info/gc/gc_source/")
+ (upstream-name . "gc")
+ (tunable? #t)))))
+
;; TODO: Add a static output in libgc in the next rebuild cycle.
(define-public libgc/static-libs
(package/inherit
diff --git a/gnu/packages/guile.scm b/gnu/packages/guile.scm
index 2fd9b711ce..715f5c7a61 100644
=2D-- a/gnu/packages/guile.scm
+++ b/gnu/packages/guile.scm
@@ -419,6 +419,28 @@ (define-public guile-3.0-latest
"GUILE_OPTIMIZATIONS =3D -O1 -Oresolve-primitives =
-Ocps\n")))))
'())))))))
=20
+(define-public guile-3.0-latest/tunable
+ (package
+ (inherit guile-3.0-latest)
+ (version "3.0.9t")
+ (source (origin
+ (inherit (package-source guile-3.0))
+ (uri (string-append "mirror://gnu/guile/guile-"
+ (string-delete #\t version)
+ ".tar.xz"))
+ (sha256
+ (base32
+ "03bm1mnfc9kkg2ls942a0js7bxrdzmcffgrgg6anwdmjfan2a9hs"))))
+ (propagated-inputs
+ (modify-inputs (package-propagated-inputs guile-3.0-latest)
+ (replace "bdw-gc" libgc/tunable)
+ ))
+
+ (properties '((tunable? . #t) ;this is the point of this=
package
+ (timeout . 72000) ;20 hours
+ (max-silent-time . 36000))))) ;10 hours (needed on ARM
+ ; when heavily loaded)
+
;;; The symbol guile-3.0/fixed should be used when guile-3.0 needs fixes
;;; (security or else) and this deprecation could be removed.
(define-deprecated/public-alias guile-3.0/fixed guile-3.0/pinned)
=2D-=20
2.39.2
--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
The results of a benchmark are still not fully conclusive: regular Guile
seems to be slightly slower in the Geometric mean of all tests, but
there are benchmarks where a tuned Guile is slower.
Note that this is tuning for znver3 while I actually have znver4, but
support for the correct compile-target will only arrive with GCC 13.
To replicate the benchmarks:
echo guix pull --disable-authentication --allow-downgrades -u =E2=80=A6 # g=
et the new packages
guix shell mercurial -- hg clone https://hg.sr.ht/~arnebab/wisp
guix shell git -- git clone https://github.com/ecraven/r7rs-benchmarks=20
cd r7rs-benchmarks
for N in {1..3}; do
guix shell --tune guile@HIDDEN -- ./bench guile all && mv results.Guile{,=
-tuned${N}}
guix shell guile@HIDDEN -- ./bench guile all && mv results.Guile{,-regular=
${N}}
sed -i 's/\+guile/+guiletuned/' results.Guile-tuned${N}
sed -i 's/\+guile/+guileregular/' results.Guile-regular${N}
done
grep -a -h '+!CSVLINE' results.Guile-{regular,tuned}* | sed 's/+!CSVLINE!+/=
/' > all.csv
guix shell guile-wisp guile -- ../wisp/examples/evaluate-r7rs-benchmark.w ~=
/eigenes/Programme/r7rs-benchmarks/all.csv guiletuned
guix shell guile-wisp guile -- ../wisp/examples/evaluate-r7rs-benchmark.w ~=
/eigenes/Programme/r7rs-benchmarks/all.csv guileregular
My results with N in {1..2}, the Geometric mean:
Guile tuned has a slowdown of 1.03512801239189
Guile regular has a slowdown of 1.0504373210343294
This suggests that the regular Guile is 1.48% slower than tuned Guile.
Since I have no errorbars, I cannot say whether this is significant.
=3D=3D=3D Guiletuned slowdown =3D=3D=3D
(("bv2string:1000:1000:100" . 1.0)
("equal" . #f)
("mperm:20:10:2:1" . 1.146669471586088)
("gcbench:20:1" . 1.0197445340007967)
("sboyer:5:1" . 1.0398502157522214)
("nboyer:5:1" . 1.050828554948064)
("chudnovsky:50:500:50:1000"
.
1.0236854348323314)
("slatex:500" . 1.0063944149759714)
("scheme:100000" . 1.0689169431069399)
("quicksort:10000:2500" . 1.003088477529797)
("primes:1000:10000" . 1.041839283639136)
("peval:2000" . 1.0560148767561295)
("parsing:2500" . 1.0003564615141731)
("paraffins:23:10" . 2.0039145601078086)
("nqueens:13:10" . 1.0)
("mazefun:11:11:10000" . 1.034627134692567)
("maze:20:7:10000" . 1.001234149986604)
("matrix:5:5:2500" . 1.047237971262676)
("lattice:44:10" . 1.003284878892407)
("graphs:7:3" . 1.101724767552233)
("earley:1" . 1.0507663201957202)
("dynamic:500" . 1.0806476338778386)
("conform:500" . 1.0)
("compiler:2000" . 1.0973709486022507)
("read1:2500" . 1.0)
("wc:inputs/bib:50" . 1.0252716381981584)
("tail:50" . 1.070013760352806)
("cat:50" . 1.1006490143447183)
("sum1:25" . 1.0)
("string:500000:100" . 1.005448377967908)
("array1:1000000:500" . 1.017108880809611)
("ack:3:12:2" . 1.0343152722188402)
("simplex:1000000" . 1.0213054034897673)
("ray:50" . 1.0090968950973398)
("pnpoly:1000000" . 1.0091804774033606)
("pi:50:500:50:100" . 1.0)
("nucleic:50" . 1.0173803271423734)
("mbrotZ:75:1000" . 1.022665128035874)
("mbrot:75:1000" . 1.0)
("fft:65536:100" . 1.0)
("sumfp:1000000.0:500" . 1.0)
("sum:10000:200000" . 1.0028978038917624)
("fibfp:35.0:10" . 1.029590065926432)
("fibc:30:10" . 1.0072040559671238)
("fib:40:5" . 1.0023503962392322)
("ctak:27:16:8:1" . 1.0)
("cpstak:40:20:11:1" . 1.0)
("ntakl:40:20:12:1" . 1.046107228813898)
("takl:40:20:12:1" . 1.0327425092626041)
("tak:40:20:11:1" . 1.0)
("triangl:22:1:50" . 1.0143942222863194)
("puzzle:1000" . 1.2229189054254013)
("divrec:1000:1000000" . 1.0074179348861916)
("diviter:1000:1000000" . 1.043931078583493)
("destruc:600:50:4000" . 1.0240507947888393)
("deriv:10000000" . 1.0319784815172544)
("browse:2000" . 1.1070660842252487)
("bv2string:1000:1000:100" . 1.0338536673222782)
("equal" . #f)
("mperm:20:10:2:1" . 1.1881732405136267)
("gcbench:20:1" . 1.0)
("sboyer:5:1" . 1.0631408998092902)
("nboyer:5:1" . 1.0217971951625024)
("chudnovsky:50:500:50:1000" . 1.0)
("slatex:500" . 1.0)
("scheme:100000" . 1.0)
("quicksort:10000:2500" . 1.0543263325575605)
("primes:1000:10000" . 1.0067412573033894)
("peval:2000" . 1.0)
("parsing:2500" . 1.0)
("paraffins:23:10" . 1.0)
("nqueens:13:10" . 1.0176605905015021)
("mazefun:11:11:10000" . 1.037746391910457)
("maze:20:7:10000" . 1.0)
("matrix:5:5:2500" . 1.0200605013910409)
("lattice:44:10" . 1.0102542438570286)
("graphs:7:3" . 1.0384572473968816)
("earley:1" . 1.0)
("dynamic:500" . 1.0)
("conform:500" . 1.0091118513899833)
("compiler:2000" . 1.0)
("read1:2500" . 1.0599058441532945)
("wc:inputs/bib:50" . 1.0746142263219225)
("tail:50" . 1.0632740266035832)
("cat:50" . 1.0929665813153533)
("sum1:25" . 1.036061672363642)
("string:500000:100" . 1.0162155078942512)
("array1:1000000:500" . 1.0515376902103308)
("ack:3:12:2" . 1.0118706763775067)
("simplex:1000000" . 1.0164588830600216)
("ray:50" . 1.0)
("pnpoly:1000000" . 1.0)
("pi:50:500:50:100" . 1.045459192674658)
("nucleic:50" . 1.0017484672084827)
("mbrotZ:75:1000" . 1.0)
("mbrot:75:1000" . 1.0311423294990856)
("fft:65536:100" . 1.0504466238403414)
("sumfp:1000000.0:500" . 1.0091469248322233)
("sum:10000:200000" . 1.0)
("fibfp:35.0:10" . 1.0)
("fibc:30:10" . 1.1257119803649067)
("fib:40:5" . 1.0)
("ctak:27:16:8:1" . 1.0148864364373957)
("cpstak:40:20:11:1" . 1.011283388260497)
("ntakl:40:20:12:1" . 1.0)
("takl:40:20:12:1" . 1.007232975497366)
("tak:40:20:11:1" . 1.0362220583744437)
("triangl:22:1:50" . 1.022212297184504)
("puzzle:1000" . 1.2350889918747268)
("divrec:1000:1000000" . 1.0064081034755894)
("diviter:1000:1000000" . 1.0)
("destruc:600:50:4000" . 1.0)
("deriv:10000000" . 1.0061506030191765)
("browse:2000" . 1.0065279614595284))
=3D=3D=3D Guiletuned Geometric Mean slowdown (successful tests / total test=
s) =3D=3D=3D
1.03512801239189 (112 / 114)
=3D=3D=3D Guileregular slowdown =3D=3D=3D
(("bv2string:1000:1000:100" . 1.0674803047626884)
("equal" . #f)
("mperm:20:10:2:1" . 1.094739035540671)
("gcbench:20:1" . 1.0172414374269374)
("sboyer:5:1" . 1.0)
("nboyer:5:1" . 1.0)
("chudnovsky:50:500:50:1000"
.
1.1734845659670659)
("slatex:500" . 1.0239374916619306)
("scheme:100000" . 1.122700507430036)
("quicksort:10000:2500" . 1.0)
("primes:1000:10000" . 1.0)
("peval:2000" . 1.0088858652748092)
("parsing:2500" . 1.0418903162390507)
("paraffins:23:10" . 2.042048452193248)
("nqueens:13:10" . 1.0100153261373226)
("mazefun:11:11:10000" . 1.0)
("maze:20:7:10000" . 1.048959091743095)
("matrix:5:5:2500" . 1.0)
("lattice:44:10" . 1.0079437861216478)
("graphs:7:3" . 1.198135373192713)
("earley:1" . 1.0959681146976517)
("dynamic:500" . 1.16155735839947)
("conform:500" . 1.0119217370442324)
("compiler:2000" . 1.0306165278415973)
("read1:2500" . 1.0460552396933456)
("wc:inputs/bib:50" . 1.0)
("tail:50" . 1.0319054479289398)
("cat:50" . 1.0)
("sum1:25" . 1.034137468078866)
("string:500000:100" . 1.0)
("array1:1000000:500" . 1.0)
("ack:3:12:2" . 1.0057561961050057)
("simplex:1000000" . 1.0)
("ray:50" . 1.0438647708135202)
("pnpoly:1000000" . 1.0874091135942872)
("pi:50:500:50:100" . 1.0215934390378087)
("nucleic:50" . 1.0)
("mbrotZ:75:1000" . 1.052938347579755)
("mbrot:75:1000" . 1.0329378591712912)
("fft:65536:100" . 1.0189087888402792)
("sumfp:1000000.0:500" . 1.0482534106366277)
("sum:10000:200000" . 1.0289912283371638)
("fibfp:35.0:10" . 1.033671691949834)
("fibc:30:10" . 1.178850020182939)
("fib:40:5" . 1.024466514102094)
("ctak:27:16:8:1" . 1.1039955311250749)
("cpstak:40:20:11:1" . 1.0371479505513828)
("ntakl:40:20:12:1" . 1.0213756257162367)
("takl:40:20:12:1" . 1.0)
("tak:40:20:11:1" . 1.0126417896363957)
("triangl:22:1:50" . 1.0)
("puzzle:1000" . 1.0)
("divrec:1000:1000000" . 1.0450154469330961)
("diviter:1000:1000000" . 1.0591207445325488)
("destruc:600:50:4000" . 1.0838399255052662)
("deriv:10000000" . 1.0)
("browse:2000" . 1.018717561314545)
("bv2string:1000:1000:100" . 1.036089236974368)
("equal" . #f)
("mperm:20:10:2:1" . 1.0)
("gcbench:20:1" . 1.0243606915521992)
("sboyer:5:1" . 1.00368112089037)
("nboyer:5:1" . 1.0500604616494615)
("chudnovsky:50:500:50:1000" . 1.115409983742645)
("slatex:500" . 1.0002570334324394)
("scheme:100000" . 1.0390531892971318)
("quicksort:10000:2500" . 1.0098428078516584)
("primes:1000:10000" . 1.06437827292514)
("peval:2000" . 1.024359358481343)
("parsing:2500" . 1.0004232513670308)
("paraffins:23:10" . 2.024687502614597)
("nqueens:13:10" . 1.0058665553469563)
("mazefun:11:11:10000" . 1.056194215282642)
("maze:20:7:10000" . 1.020543843425558)
("matrix:5:5:2500" . 1.0028500406404608)
("lattice:44:10" . 1.0)
("graphs:7:3" . 1.0)
("earley:1" . 1.0256148071738138)
("dynamic:500" . 1.008662479565268)
("conform:500" . 1.0332430727462598)
("compiler:2000" . 1.006956809282123)
("read1:2500" . 1.0564058966125223)
("wc:inputs/bib:50" . 1.0335552278476583)
("tail:50" . 1.0)
("cat:50" . 1.0263527061380673)
("sum1:25" . 1.0638438694063255)
("string:500000:100" . 1.1084001200578586)
("array1:1000000:500" . 1.0547700539059255)
("ack:3:12:2" . 1.0)
("simplex:1000000" . 1.021845418562125)
("ray:50" . 1.0558263145762616)
("pnpoly:1000000" . 1.0598933662254997)
("pi:50:500:50:100" . 1.0211985475879175)
("nucleic:50" . 1.0313190698159154)
("mbrotZ:75:1000" . 1.0191939711368345)
("mbrot:75:1000" . 1.0325883765897468)
("fft:65536:100" . 1.1023483002887104)
("sumfp:1000000.0:500" . 1.0794299746553448)
("sum:10000:200000" . 1.063704305941153)
("fibfp:35.0:10" . 1.1160079648284265)
("fibc:30:10" . 1.0)
("fib:40:5" . 1.0533185743228644)
("ctak:27:16:8:1" . 1.2839324786349615)
("cpstak:40:20:11:1" . 1.0290465857280968)
("ntakl:40:20:12:1" . 1.017152038958873)
("takl:40:20:12:1" . 1.0008854776027978)
("tak:40:20:11:1" . 1.0077102329273817)
("triangl:22:1:50" . 1.0435679627887324)
("puzzle:1000" . 1.0006869727744467)
("divrec:1000:1000000" . 1.0)
("diviter:1000:1000000" . 1.0496228639946887)
("destruc:600:50:4000" . 1.0446502508269544)
("deriv:10000000" . 1.0901526807172006)
("browse:2000" . 1.0))
=3D=3D=3D Guileregular Geometric Mean slowdown (successful tests / total te=
sts) =3D=3D=3D
1.0504373210343294 (112 / 114)
Actual full results from two runs:
=3D=3D=3D Guiletuned times =3D=3D=3D
(("ack:3:12:2" "2.85671086")
("ack:3:12:2" "2.920076389")
("array1:1000000:500" "2.719338434")
("array1:1000000:500" "2.630303504")
("browse:2000" "4.653660319")
("browse:2000" "5.118496161")
("bv2string:1000:1000:100" "1.433438423")
("bv2string:1000:1000:100" "1.386500303")
("cat:50" "10.334967974")
("cat:50" "10.407612189")
("chudnovsky:50:500:50:1000" "0.362723212")
("chudnovsky:50:500:50:1000" "0.371314469")
("compiler:2000" "2.14676404")
("compiler:2000" "2.355796491")
("conform:500" "4.878185941")
("conform:500" "4.834137994")
("cpstak:40:20:11:1" "17.407945755")
("cpstak:40:20:11:1" "17.213716706")
("ctak:27:16:8:1" "13.296419091")
("ctak:27:16:8:1" "13.101386139")
("deriv:10000000" "6.006358226")
("deriv:10000000" "6.160541397")
("destruc:600:50:4000" "2.524561809")
("destruc:600:50:4000" "2.585279527")
("diviter:1000:1000000" "4.459944493")
("diviter:1000:1000000" "4.655874665")
("divrec:1000:1000000" "6.71596458")
("divrec:1000:1000000" "6.722703389")
("dynamic:500" "3.525123929")
("dynamic:500" "3.809416833")
("earley:1" "4.054948659")
("earley:1" "4.260803481")
("equal" "ULIMITKILLED")
("equal" "ULIMITKILLED")
("fft:65536:100" "2.635766227")
("fft:65536:100" "2.509186252")
("fib:40:5" "4.193038108")
("fib:40:5" "4.202893409")
("fibc:30:10" "40.788333173")
("fibc:30:10" "36.494392282")
("fibfp:35.0:10" "9.395625366")
("fibfp:35.0:10" "9.67364254")
("gcbench:20:1" "0.99502713")
("gcbench:20:1" "1.014673477")
("graphs:7:3" "12.370817417")
("graphs:7:3" "13.124503659")
("lattice:44:10" "6.197259938")
("lattice:44:10" "6.154507367")
("matrix:5:5:2500" "3.641334999")
("matrix:5:5:2500" "3.73835108")
("maze:20:7:10000" "1.613933494")
("maze:20:7:10000" "1.61592533")
("mazefun:11:11:10000" "3.749008984")
("mazefun:11:11:10000" "3.737740216")
("mbrot:75:1000" "19.750189296")
("mbrot:75:1000" "19.153698506")
("mbrotZ:75:1000" "20.612462381")
("mbrotZ:75:1000" "21.07964648")
("mperm:20:10:2:1" "9.617642771")
("mperm:20:10:2:1" "9.281691405")
("nboyer:5:1" "1.872344958")
("nboyer:5:1" "1.925542129")
("nqueens:13:10" "6.834513689")
("nqueens:13:10" "6.715906809")
("ntakl:40:20:12:1" "3.226853095")
("ntakl:40:20:12:1" "3.375634349")
("nucleic:50" "4.703444216")
("nucleic:50" "4.776839468")
("paraffins:23:10" "2.986478347")
("paraffins:23:10" "5.984647443")
("parsing:2500" "3.588179787")
("parsing:2500" "3.589458835")
("peval:2000" "4.217629667")
("peval:2000" "4.453879673")
("pi:50:500:50:100" "0.526672392")
("pi:50:500:50:100" "0.503771353")
("pnpoly:1000000" "12.105856386")
("pnpoly:1000000" "12.216993927")
("primes:1000:10000" "2.763279203")
("primes:1000:10000" "2.859615422")
("puzzle:1000" "7.432281644")
("puzzle:1000" "7.359046832")
("quicksort:10000:2500" "4.919145241")
("quicksort:10000:2500" "4.680086002")
("ray:50" "6.232801675")
("ray:50" "6.289500818")
("read1:2500" "3.322952744")
("read1:2500" "3.135139562")
("sboyer:5:1" "1.585267198")
("sboyer:5:1" "1.550538069")
("scheme:100000" "5.899088913")
("scheme:100000" "6.305636088")
("simplex:1000000" "4.74155611")
("simplex:1000000" "4.764164057")
("slatex:500" "5.5026227")
("slatex:500" "5.537808753")
("string:500000:100" "0.68799508")
("string:500000:100" "0.680705551")
("sum1:25" "3.378466719")
("sum1:25" "3.260874144")
("sum:10000:200000" "1.715693396")
("sum:10000:200000" "1.720665139")
("sumfp:1000000.0:500" "17.278236223")
("sumfp:1000000.0:500" "17.121625997")
("tail:50" "4.837888687")
("tail:50" "4.868554424")
("tak:40:20:11:1" "2.207812177")
("tak:40:20:11:1" "2.13063615")
("takl:40:20:12:1" "3.273725333")
("takl:40:20:12:1" "3.356636843")
("triangl:22:1:50" "3.13643409")
("triangl:22:1:50" "3.112446043")
("wc:inputs/bib:50" "6.354178924")
("wc:inputs/bib:50" "6.062416889"))
=3D=3D=3D Guileregular times =3D=3D=3D
(("ack:3:12:2" "2.823197595")
("ack:3:12:2" "2.839448474")
("array1:1000000:500" "2.727697517")
("array1:1000000:500" "2.58605893")
("browse:2000" "4.62347843")
("browse:2000" "4.710018671")
("bv2string:1000:1000:100" "1.436538041")
("bv2string:1000:1000:100" "1.480061766")
("cat:50" "9.705074729")
("cat:50" "9.45588653")
("chudnovsky:50:500:50:1000" "0.404585092")
("chudnovsky:50:500:50:1000" "0.425650091")
("compiler:2000" "2.161698668")
("compiler:2000" "2.212490501")
("conform:500" "4.994839595")
("conform:500" "4.891769316")
("cpstak:40:20:11:1" "17.713716404")
("cpstak:40:20:11:1" "17.853171003")
("ctak:27:16:8:1" "16.821295179")
("ctak:27:16:8:1" "14.463871749")
("deriv:10000000" "6.507820501")
("deriv:10000000" "5.969641332")
("destruc:600:50:4000" "2.637284127")
("destruc:600:50:4000" "2.736220883")
("diviter:1000:1000000" "4.681259712")
("diviter:1000:1000000" "4.723619732")
("divrec:1000:1000000" "6.673202011")
("divrec:1000:1000000" "6.973599182")
("dynamic:500" "3.555660243")
("dynamic:500" "4.094633639")
("earley:1" "4.158815387")
("earley:1" "4.444094437")
("equal" "ULIMITKILLED")
("equal" "ULIMITKILLED")
("fft:65536:100" "2.7659972")
("fft:65536:100" "2.556631925")
("fib:40:5" "4.416604922")
("fib:40:5" "4.295627134")
("fibc:30:10" "36.233365092")
("fibc:30:10" "42.71370317")
("fibfp:35.0:10" "10.485592743")
("fibfp:35.0:10" "9.711991969")
("gcbench:20:1" "1.019266679")
("gcbench:20:1" "1.012182828")
("graphs:7:3" "11.912688219")
("graphs:7:3" "14.273013145")
("lattice:44:10" "6.134356748")
("lattice:44:10" "6.183086766")
("matrix:5:5:2500" "3.579898395")
("matrix:5:5:2500" "3.569724535")
("maze:20:7:10000" "1.647089891")
("maze:20:7:10000" "1.692950212")
("mazefun:11:11:10000" "3.815654415")
("mazefun:11:11:10000" "3.612644682")
("mbrot:75:1000" "19.777886446")
("mbrot:75:1000" "19.78458033")
("mbrotZ:75:1000" "21.008097389")
("mbrotZ:75:1000" "21.703652079")
("mperm:20:10:2:1" "8.094478518")
("mperm:20:10:2:1" "8.861341606")
("nboyer:5:1" "1.924134672")
("nboyer:5:1" "1.832403697")
("nqueens:13:10" "6.755306048")
("nqueens:13:10" "6.783168806")
("ntakl:40:20:12:1" "3.282200205")
("ntakl:40:20:12:1" "3.295829099")
("nucleic:50" "4.842285137")
("nucleic:50" "4.695234752")
("paraffins:23:10" "6.046685386")
("paraffins:23:10" "6.098533486")
("parsing:2500" "3.589698489")
("parsing:2500" "3.738489773")
("peval:2000" "4.32036842")
("peval:2000" "4.255106956")
("pi:50:500:50:100" "0.514450574")
("pi:50:500:50:100" "0.514649509")
("pnpoly:1000000" "12.830916876")
("pnpoly:1000000" "13.164018562")
("primes:1000:10000" "2.921479898")
("primes:1000:10000" "2.744775962")
("puzzle:1000" "6.021742132")
("puzzle:1000" "6.017608199")
("quicksort:10000:2500" "4.71159952")
("quicksort:10000:2500" "4.665676166")
("ray:50" "6.580756022")
("ray:50" "6.506202092")
("read1:2500" "3.31197992")
("read1:2500" "3.279529166")
("sboyer:5:1" "1.496605726")
("sboyer:5:1" "1.491116745")
("scheme:100000" "6.129467149")
("scheme:100000" "6.622910116")
("simplex:1000000" "4.766683108")
("simplex:1000000" "4.664779057")
("slatex:500" "5.504037058")
("slatex:500" "5.634341685")
("string:500000:100" "0.750405621")
("string:500000:100" "0.677016907")
("sum1:25" "3.469060967")
("sum1:25" "3.372192131")
("sum:10000:200000" "1.824990453")
("sum:10000:200000" "1.765433455")
("sumfp:1000000.0:500" "18.481596316")
("sumfp:1000000.0:500" "17.947802847")
("tail:50" "4.54999235")
("tail:50" "4.695161894")
("tak:40:20:11:1" "2.147063851")
("tak:40:20:11:1" "2.157571204")
("takl:40:20:12:1" "3.25309459")
("takl:40:20:12:1" "3.250216596")
("triangl:22:1:50" "3.201959263")
("triangl:22:1:50" "3.068280531")
("wc:inputs/bib:50" "6.111397639")
("wc:inputs/bib:50" "5.912986045"))
Best wishes,
Arne
=2D-=20
Unpolitisch sein
hei=C3=9Ft politisch sein,
ohne es zu merken.
draketo.de
--=-=-=--
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Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) Content-Type: text/plain; charset=utf-8 X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: "Dr. Arne Babenhauserheide" <arne_bab@HIDDEN> Subject: bug#62395: Acknowledgement ([PATCH] Tunable guile@HIDDEN package) Message-ID: <handler.62395.B.167952492824118.ack <at> debbugs.gnu.org> References: <87zg8479mo.fsf@HIDDEN> X-Gnu-PR-Message: ack 62395 X-Gnu-PR-Package: guix X-Gnu-PR-Keywords: patch Reply-To: 62395 <at> debbugs.gnu.org Date: Wed, 22 Mar 2023 22:43:02 +0000 Thank you for filing a new bug report with debbugs.gnu.org. This is an automatically generated reply to let you know your message has been received. Your message is being forwarded to the package maintainers and other interested parties for their attention; they will reply in due course. Your message has been sent to the package maintainer(s): bug-guix@HIDDEN If you wish to submit further information on this problem, please send it to 62395 <at> debbugs.gnu.org. Please do not send mail to help-debbugs@HIDDEN unless you wish to report a problem with the Bug-tracking system. --=20 62395: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D62395 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
X-Loop: help-debbugs@HIDDEN
Subject: bug#62395: [PATCH] Tunable guile@HIDDEN package
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Hi,
"Dr. Arne Babenhauserheide" <arne_bab@HIDDEN> skribis:
> The attached patch adds a guile@HIDDEN package that enables CPU
> architecture tuning for Guile and for a specialized libgc.
>
> It creates new packages to avoid causing rebuilds.
Marking a package as tunable does not involve any rebuilds, by design:
https://hpc.guix.info/blog/2022/01/tuning-packages-for-a-cpu-micro-archit=
ecture/
Thus there=E2=80=99s no need to create package variants.
> The results of a benchmark are still not fully conclusive: regular Guile
> seems to be slightly slower in the Geometric mean of all tests, but
> there are benchmarks where a tuned Guile is slower.
>
> Note that this is tuning for znver3 while I actually have znver4, but
> support for the correct compile-target will only arrive with GCC 13.
[...]
> Guile tuned has a slowdown of 1.03512801239189
> Guile regular has a slowdown of 1.0504373210343294
>
> This suggests that the regular Guile is 1.48% slower than tuned Guile.
>
> Since I have no errorbars, I cannot say whether this is significant.
As far as I know, there=E2=80=99s no reason why Guile=E2=80=99s C code woul=
d benefit
from ISA extensions (we=E2=80=99re mostly talking about vector instructions=
like
those of AVX). The only part in libguile that=E2=80=99s performance-critic=
al is
the VM engine=E2=80=94but I don=E2=80=99t see how that code could benefit f=
rom vector
instructions. Likewise, I doubt libgc build with =E2=80=98-march=3Dznver3=
=E2=80=99 has
any chance of being any faster; most likely, the generated code is close
to the baseline.
For these reasons, I=E2=80=99m reluctant to this patch. Tuning should be d=
one
only on packages where it makes sense, typically linear algebra code,
image/video processing, and so on.
WDYT?
Ludo=E2=80=99.
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