From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/116654 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Rik Kabel via ntg-context Newsgroups: gmane.comp.tex.context Subject: Re: bottlenecks Date: Fri, 16 Dec 2022 16:08:12 -0500 Message-ID: <4dd11121-7761-861a-1f4e-7ed04fb8117b@rik.users.panix.com> References: <980e90bd-48cc-016c-b60d-6ede05fd8891@xs4all.nl>

Reply-To: mailing list for ConTeXt users Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============8284268663648339473==" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="33071"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0 Thunderbird/102.5.1 Cc: Rik Kabel To: ntg-context@ntg.nl Original-X-From: ntg-context-bounces@ntg.nl Fri Dec 16 22:08:55 2022 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane-mx.org Original-Received: from zapf.boekplan.nl ([5.39.185.232] helo=zapf.ntg.nl) by ciao.gmane.io with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1p6Hwt-0008MN-0S for gctc-ntg-context-518@m.gmane-mx.org; Fri, 16 Dec 2022 22:08:55 +0100 Original-Received: from localhost (localhost [127.0.0.1]) by zapf.ntg.nl (Postfix) with ESMTP id CD6982A4DA7; Fri, 16 Dec 2022 22:08:22 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at zapf.boekplan.nl Original-Received: from zapf.ntg.nl ([127.0.0.1]) by localhost (zapf.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1mPQEz2e-AaN; Fri, 16 Dec 2022 22:08:19 +0100 (CET) Original-Received: from zapf.ntg.nl (localhost [127.0.0.1]) by zapf.ntg.nl (Postfix) with ESMTP id B60ED2A4DA9; Fri, 16 Dec 2022 22:08:19 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by zapf.ntg.nl (Postfix) with ESMTP id 5CA062A4DA4 for ; Fri, 16 Dec 2022 22:08:18 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at zapf.boekplan.nl Original-Received: from zapf.ntg.nl ([127.0.0.1]) by localhost (zapf.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9rp718MqKPoP for ; Fri, 16 Dec 2022 22:08:16 +0100 (CET) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=166.84.1.89; helo=mailbackend.panix.com; envelope-from=context@rik.users.panix.com; receiver= Original-Received: from mailbackend.panix.com (mailbackend.panix.com [166.84.1.89]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by zapf.ntg.nl (Postfix) with ESMTPS id D11F72A4DA1 for ; Fri, 16 Dec 2022 22:08:15 +0100 (CET) Original-Received: from [192.168.1.106] (cpe-69-204-136-231.nycap.res.rr.com [69.204.136.231]) by mailbackend.panix.com (Postfix) with ESMTPSA id 4NYhXG0v1Yz4JDM for ; Fri, 16 Dec 2022 16:08:14 -0500 (EST) Content-Language: en-US In-Reply-To: X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.26 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ntg-context-bounces@ntg.nl Original-Sender: "ntg-context" Xref: news.gmane.io gmane.comp.tex.context:116654 Archived-At: This is a multi-part message in MIME format. --===============8284268663648339473== Content-Type: multipart/alternative; boundary="------------wlWXqv0LCxXON9hFaHwcxRtg" Content-Language: en-US This is a multi-part message in MIME format. --------------wlWXqv0LCxXON9hFaHwcxRtg Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hans, Here are the stats for a 346 page book. Fonts are all cached. Compilation is via a make file which processes this as: context --noconsole --overloadmode=error --batchmode --nonstopmode --nosynctex misquotation_bodyonly.mkvi > nul and is run under W11 x64 on an i7-8550U. The only tables are contents and acronyms, and such, nothing complex. No graphics. Compact fonts are enabled. mkiv lua stats > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua mkiv lua stats > used cache path: C:/ConTeXt_LMTX/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e mkiv lua stats > resource resolver: loadtime 0.042 seconds, 1 scans with scantime 0.035 seconds, 0 shared scans, 37 found files, scanned paths: C:/Users/micro/texmf mkiv lua stats > stored bytecode data: 507 modules (0.236 sec), 106 tables (0.015 sec), 613 chunks (0.251 sec) mkiv lua stats > traced context: maxstack: 4107, freed: 2452, unreachable: 1655 mkiv lua stats > cleaned up reserved nodes: 78 nodes, 8 lists of 438 mkiv lua stats > node memory usage: 6869 attribute, 4608 dir, 4612 glue, 84 gluespec, 2304 glyph, 3072 hlist, 3 kern, 647 mathspec, 5 penalty, 2 temp mkiv lua stats > node list callback tasks: 13 unique task lists, 37 instances (re)created, 87130 calls mkiv lua stats > h-node processing time: 3.010 seconds including kernel mkiv lua stats > inserted spaces in output: 106016 mkiv lua stats > attribute processing time: 0.236 seconds front- and backend mkiv lua stats > driver time: 2.099 seconds mkiv lua stats > used backend: pdf mkiv lua stats > jobdata time: 0.191 seconds saving, 0.051 seconds loading mkiv lua stats > callbacks: file: 34388, saved: 191153, direct: 8, function: 173575, value: 345, message: 0, bytecode: 613, late 0, total: 400082 (1184 per page) mkiv lua stats > randomizer: resumed with value 0.88558194690977 mkiv lua stats > v-node processing time: 0.194 seconds mkiv lua stats > loaded patterns: agr:gr:62 cn::58 de::3 deo:de:9 en::1 es::64 fr::63 it::66 la::67 ru::22, load time: 0.000 mkiv lua stats > structure elements: 28145 element chains identified mkiv lua stats > interactive elements: 3982 references, 4873 destinations mkiv lua stats > margin data: 497 entries, 0 pending mkiv lua stats > loaded fonts: 14 files: antykwatorunska-bold.otf, antykwatorunskacond-bold.otf, antykwatorunskacond-regular.otf, libertinusmath-regular.otf, libertinusmono-regular.otf, libertinussans-italic.otf, libertinussans-regular.otf, libertinusserif-italic.otf, libertinusserif-regular.otf, libertinusserif-semibold.otf, zentb___.otf, keteraramtsova.ttf, msjh.ttc, times.ttf mkiv lua stats > font engine: otf 3.131, afm 1.513, tfm 1.000, 84 instances, 67 shared in backend, 3 common vectors, 64 common hashes, load time 0.947 seconds mkiv lua stats > text directions: 4.273 seconds mkiv lua stats > math tweaking time: 0.152 seconds, 18 math goodie tables mkiv lua stats > pdf annotations: 3982 links (3982 unique), 0 special mkiv lua stats > font embedding time: 0.058 seconds, 13 fonts mkiv lua stats > result saved in file: misquotation_bodyonly.pdf, compresslevel 1, objectcompresslevel 3 mkiv lua stats > positions: 4034 collected, 1722 deltas, 4025 shared partials, 112 partial entries mkiv lua stats > used platform: win64, type: windows, binary subtree: texmf-win64 mkiv lua stats > used engine: luametatex version: 2.1004, functionality level: 20221214, format id: 679, compiler: gcc mkiv lua stats > tex properties: 740852 hash slots used of 2097152, 51846 control sequences, approximate memory usage: 73 MB mkiv lua stats > lua properties: engine: lua 5.4, used memory: 315 MB, ctx: 288 MB, max: 288 MB, symbol mask: utf (τεχ) mkiv lua stats > runtime: 19.332 seconds, 338 processed pages, 338 shipped pages, 17.484 pages/second and here are the stats for the same book with pdf images replacing some of the text (I still don't have rights to some images, so preparing either way): mkiv lua stats > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua mkiv lua stats > used cache path: C:/ConTeXt_LMTX/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e mkiv lua stats > resource resolver: loadtime 0.044 seconds, 1 scans with scantime 0.037 seconds, 0 shared scans, 62 found files, scanned paths: C:/Users/micro/texmf mkiv lua stats > stored bytecode data: 507 modules (0.236 sec), 106 tables (0.015 sec), 613 chunks (0.251 sec) mkiv lua stats > traced context: maxstack: 4112, freed: 2457, unreachable: 1655 mkiv lua stats > cleaned up reserved nodes: 78 nodes, 8 lists of 438 mkiv lua stats > node memory usage: 6869 attribute, 4608 dir, 4612 glue, 84 gluespec, 2304 glyph, 3072 hlist, 3 kern, 647 mathspec, 5 penalty, 2 temp mkiv lua stats > node list callback tasks: 13 unique task lists, 37 instances (re)created, 86856 calls mkiv lua stats > h-node processing time: 2.899 seconds including kernel mkiv lua stats > inserted spaces in output: 104350 mkiv lua stats > attribute processing time: 0.225 seconds front- and backend mkiv lua stats > driver time: 2.050 seconds mkiv lua stats > used backend: pdf mkiv lua stats > jobdata time: 0.210 seconds saving, 0.053 seconds loading mkiv lua stats > callbacks: file: 34137, saved: 190338, direct: 33, function: 173845, value: 337, message: 0, bytecode: 613, late 0, total: 399303 (1188 per page) mkiv lua stats > randomizer: resumed with value 0.88558194690977 mkiv lua stats > v-node processing time: 0.266 seconds mkiv lua stats > loaded patterns: agr:gr:62 cn::58 de::3 deo:de:9 en::1 es::64 fr::63 it::66 la::67 ru::22, load time: 0.000 mkiv lua stats > structure elements: 28023 element chains identified mkiv lua stats > interactive elements: 3997 references, 4875 destinations mkiv lua stats > margin data: 497 entries, 0 pending mkiv lua stats > loaded fonts: 14 files: antykwatorunska-bold.otf, antykwatorunskacond-bold.otf, antykwatorunskacond-regular.otf, libertinusmath-regular.otf, libertinusmono-regular.otf, libertinussans-italic.otf, libertinussans-regular.otf, libertinusserif-italic.otf, libertinusserif-regular.otf, libertinusserif-semibold.otf, zentb___.otf, keteraramtsova.ttf, msjh.ttc, times.ttf mkiv lua stats > font engine: otf 3.131, afm 1.513, tfm 1.000, 84 instances, 67 shared in backend, 3 common vectors, 64 common hashes, load time 0.991 seconds mkiv lua stats > text directions: 4.016 seconds mkiv lua stats > math tweaking time: 0.155 seconds, 18 math goodie tables mkiv lua stats > graphics processing time: 3.767 seconds including tex, 25 processed images, 25 unique asked, 25 bad names mkiv lua stats > pdf annotations: 3997 links (3997 unique), 0 special mkiv lua stats > font embedding time: 0.061 seconds, 12 fonts mkiv lua stats > result saved in file: misquotation_bodyonly.pdf, compresslevel 1, objectcompresslevel 3 mkiv lua stats > positions: 3983 collected, 1672 deltas, 3973 shared partials, 110 partial entries mkiv lua stats > used platform: win64, type: windows, binary subtree: texmf-win64 mkiv lua stats > used engine: luametatex version: 2.1004, functionality level: 20221214, format id: 679, compiler: gcc mkiv lua stats > tex properties: 740852 hash slots used of 2097152, 51853 control sequences, approximate memory usage: 73 MB mkiv lua stats > lua properties: engine: lua 5.4, used memory: 221 MB, ctx: 195 MB, max: 219 MB, symbol mask: utf (τεχ) mkiv lua stats > runtime: 23.057 seconds, 336 processed pages, 336 shipped pages, 14.572 pages/second Significant time is attributed to text directions (there are a few excerpts in Hebrew), and to graphics processing in the second case. In neither case do the sum of the times listed in the stats come close to the total runtime (in the second example, 14.774 seconds of 23.057 are accounted), so there are other unidentified processes involved. In any case, the processing time has been improving greatly over the last couple of years, and LMTX is significantly faster that MkIV in all of my work. -- Rik On 2022-12-16 15:02, Hans Hagen via ntg-context wrote: > On 12/16/2022 8:36 PM, Henning Hraban Ramm via ntg-context wrote: >> Am 16.12.22 um 18:10 schrieb Hans Hagen via ntg-context: >>> So the challenge is how to determine bottlenecks. Are there users on >>> this list that have document runs of more than 10 seconds (as >>> reference: the luametatex manual takes < 9 seconds for 350 pages and >>> loads plenty fonts and has many tables) or have many (small) runs >>> and are annoyed by the runtime? And if so, what does one guess are >>> the bottlenecks? >> >> (1) >> This is my 366 page ConTeXt book: > >> mkiv lua stats > runtime: 30.592 seconds, 366 processed pages, 366 >> shipped pages, 11.964 pages/second > >> (2) >> This is a 720 page novel (first run with this LMTX version, some >> fonts were still uncached): >> > >> mkiv lua stats > runtime: 19.275 seconds, 720 processed pages, 720 >> shipped pages, 37.355 pages/second > so what if you add to the top > > \enableexperiments[fonts.compact] > > Hans > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > ----------------------------------------------------------------- > > ___________________________________________________________________________________ > > If your question is of interest to others as well, please add an entry > to the Wiki! > > maillist : ntg-context@ntg.nl / > https://www.ntg.nl/mailman/listinfo/ntg-context > webpage : https://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : https://contextgarden.net > ___________________________________________________________________________________ > --------------wlWXqv0LCxXON9hFaHwcxRtg Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit

Hans,

Here are the stats for a 346 page book. Fonts are all cached. Compilation is via a make file which processes this as:

context --noconsole --overloadmode=error --batchmode --nonstopmode --nosynctex misquotation_bodyonly.mkvi > nul

and is run under W11 x64 on an i7-8550U. The only tables are contents and acronyms, and such, nothing complex. No graphics. Compact fonts are enabled.

mkiv lua stats > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua
mkiv lua stats > used cache path: C:/ConTeXt_LMTX/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e
mkiv lua stats > resource resolver: loadtime 0.042 seconds, 1 scans with scantime 0.035 seconds, 0 shared scans, 37 found files, scanned paths: C:/Users/micro/texmf
mkiv lua stats > stored bytecode data: 507 modules (0.236 sec), 106 tables (0.015 sec), 613 chunks (0.251 sec)
mkiv lua stats > traced context: maxstack: 4107, freed: 2452, unreachable: 1655
mkiv lua stats > cleaned up reserved nodes: 78 nodes, 8 lists of 438
mkiv lua stats > node memory usage: 6869 attribute, 4608 dir, 4612 glue, 84 gluespec, 2304 glyph, 3072 hlist, 3 kern, 647 mathspec, 5 penalty, 2 temp
mkiv lua stats > node list callback tasks: 13 unique task lists, 37 instances (re)created, 87130 calls
mkiv lua stats > h-node processing time: 3.010 seconds including kernel
mkiv lua stats > inserted spaces in output: 106016
mkiv lua stats > attribute processing time: 0.236 seconds front- and backend
mkiv lua stats > driver time: 2.099 seconds
mkiv lua stats > used backend: pdf
mkiv lua stats > jobdata time: 0.191 seconds saving, 0.051 seconds loading
mkiv lua stats > callbacks: file: 34388, saved: 191153, direct: 8, function: 173575, value: 345, message: 0, bytecode: 613, late 0, total: 400082 (1184 per page)
mkiv lua stats > randomizer: resumed with value 0.88558194690977
mkiv lua stats > v-node processing time: 0.194 seconds
mkiv lua stats > loaded patterns: agr:gr:62 cn::58 de::3 deo:de:9 en::1 es::64 fr::63 it::66 la::67 ru::22, load time: 0.000
mkiv lua stats > structure elements: 28145 element chains identified
mkiv lua stats > interactive elements: 3982 references, 4873 destinations
mkiv lua stats > margin data: 497 entries, 0 pending
mkiv lua stats > loaded fonts: 14 files: antykwatorunska-bold.otf, antykwatorunskacond-bold.otf, antykwatorunskacond-regular.otf, libertinusmath-regular.otf, libertinusmono-regular.otf, libertinussans-italic.otf, libertinussans-regular.otf, libertinusserif-italic.otf, libertinusserif-regular.otf, libertinusserif-semibold.otf, zentb___.otf, keteraramtsova.ttf, msjh.ttc, times.ttf
mkiv lua stats > font engine: otf 3.131, afm 1.513, tfm 1.000, 84 instances, 67 shared in backend, 3 common vectors, 64 common hashes, load time 0.947 seconds
mkiv lua stats > text directions: 4.273 seconds
mkiv lua stats > math tweaking time: 0.152 seconds, 18 math goodie tables
mkiv lua stats > pdf annotations: 3982 links (3982 unique), 0 special
mkiv lua stats > font embedding time: 0.058 seconds, 13 fonts
mkiv lua stats > result saved in file: misquotation_bodyonly.pdf, compresslevel 1, objectcompresslevel 3
mkiv lua stats > positions: 4034 collected, 1722 deltas, 4025 shared partials, 112 partial entries
mkiv lua stats > used platform: win64, type: windows, binary subtree: texmf-win64
mkiv lua stats > used engine: luametatex version: 2.1004, functionality level: 20221214, format id: 679, compiler: gcc
mkiv lua stats > tex properties: 740852 hash slots used of 2097152, 51846 control sequences, approximate memory usage: 73 MB
mkiv lua stats > lua properties: engine: lua 5.4, used memory: 315 MB, ctx: 288 MB, max: 288 MB, symbol mask: utf (τεχ)
mkiv lua stats > runtime: 19.332 seconds, 338 processed pages, 338 shipped pages, 17.484 pages/second

and here are the stats for the same book with pdf images replacing some of the text (I still don't have rights to some images, so preparing either way):

mkiv lua stats > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua
mkiv lua stats > used cache path: C:/ConTeXt_LMTX/tex/texmf-cache/luametatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e
mkiv lua stats > resource resolver: loadtime 0.044 seconds, 1 scans with scantime 0.037 seconds, 0 shared scans, 62 found files, scanned paths: C:/Users/micro/texmf
mkiv lua stats > stored bytecode data: 507 modules (0.236 sec), 106 tables (0.015 sec), 613 chunks (0.251 sec)
mkiv lua stats > traced context: maxstack: 4112, freed: 2457, unreachable: 1655
mkiv lua stats > cleaned up reserved nodes: 78 nodes, 8 lists of 438
mkiv lua stats > node memory usage: 6869 attribute, 4608 dir, 4612 glue, 84 gluespec, 2304 glyph, 3072 hlist, 3 kern, 647 mathspec, 5 penalty, 2 temp
mkiv lua stats > node list callback tasks: 13 unique task lists, 37 instances (re)created, 86856 calls
mkiv lua stats > h-node processing time: 2.899 seconds including kernel
mkiv lua stats > inserted spaces in output: 104350
mkiv lua stats > attribute processing time: 0.225 seconds front- and backend
mkiv lua stats > driver time: 2.050 seconds
mkiv lua stats > used backend: pdf
mkiv lua stats > jobdata time: 0.210 seconds saving, 0.053 seconds loading
mkiv lua stats > callbacks: file: 34137, saved: 190338, direct: 33, function: 173845, value: 337, message: 0, bytecode: 613, late 0, total: 399303 (1188 per page)
mkiv lua stats > randomizer: resumed with value 0.88558194690977
mkiv lua stats > v-node processing time: 0.266 seconds
mkiv lua stats > loaded patterns: agr:gr:62 cn::58 de::3 deo:de:9 en::1 es::64 fr::63 it::66 la::67 ru::22, load time: 0.000
mkiv lua stats > structure elements: 28023 element chains identified
mkiv lua stats > interactive elements: 3997 references, 4875 destinations
mkiv lua stats > margin data: 497 entries, 0 pending
mkiv lua stats > loaded fonts: 14 files: antykwatorunska-bold.otf, antykwatorunskacond-bold.otf, antykwatorunskacond-regular.otf, libertinusmath-regular.otf, libertinusmono-regular.otf, libertinussans-italic.otf, libertinussans-regular.otf, libertinusserif-italic.otf, libertinusserif-regular.otf, libertinusserif-semibold.otf, zentb___.otf, keteraramtsova.ttf, msjh.ttc, times.ttf
mkiv lua stats > font engine: otf 3.131, afm 1.513, tfm 1.000, 84 instances, 67 shared in backend, 3 common vectors, 64 common hashes, load time 0.991 seconds
mkiv lua stats > text directions: 4.016 seconds
mkiv lua stats > math tweaking time: 0.155 seconds, 18 math goodie tables
mkiv lua stats > graphics processing time: 3.767 seconds including tex, 25 processed images, 25 unique asked, 25 bad names
mkiv lua stats > pdf annotations: 3997 links (3997 unique), 0 special
mkiv lua stats > font embedding time: 0.061 seconds, 12 fonts
mkiv lua stats > result saved in file: misquotation_bodyonly.pdf, compresslevel 1, objectcompresslevel 3
mkiv lua stats > positions: 3983 collected, 1672 deltas, 3973 shared partials, 110 partial entries
mkiv lua stats > used platform: win64, type: windows, binary subtree: texmf-win64
mkiv lua stats > used engine: luametatex version: 2.1004, functionality level: 20221214, format id: 679, compiler: gcc
mkiv lua stats > tex properties: 740852 hash slots used of 2097152, 51853 control sequences, approximate memory usage: 73 MB
mkiv lua stats > lua properties: engine: lua 5.4, used memory: 221 MB, ctx: 195 MB, max: 219 MB, symbol mask: utf (τεχ)
mkiv lua stats > runtime: 23.057 seconds, 336 processed pages, 336 shipped pages, 14.572 pages/second

Significant time is attributed to text directions (there are a few excerpts in Hebrew), and to graphics processing in the second case.

In neither case do the sum of the times listed in the stats come close to the total runtime (in the second example, 14.774 seconds of 23.057 are accounted), so there are other unidentified processes involved.

In any case, the processing time has been improving greatly over the last couple of years, and LMTX is significantly faster that MkIV in all of my work.

--
Rik

On 2022-12-16 15:02, Hans Hagen via ntg-context wrote:

On 12/16/2022 8:36 PM, Henning Hraban Ramm via ntg-context wrote:

Am 16.12.22 um 18:10 schrieb Hans Hagen via ntg-context:

So the challenge is how to determine bottlenecks. Are there users on this list that have document runs of more than 10 seconds (as reference: the luametatex manual takes < 9 seconds for 350 pages and loads plenty fonts and has many tables) or have many (small) runs and are annoyed by the runtime? And if so, what does one guess are the bottlenecks?

(1)
This is my 366 page ConTeXt book:

mkiv lua stats > runtime: 30.592 seconds, 366 processed pages, 366 shipped pages, 11.964 pages/second

(2)
This is a 720 page novel (first run with this LMTX version, some fonts were still uncached):

mkiv lua stats > runtime: 19.275 seconds, 720 processed pages, 720 shipped pages, 37.355 pages/second

so what if you add to the top

\enableexperiments[fonts.compact]

Hans

-----------------------------------------------------------------
                                          Hans Hagen | PRAGMA ADE
              Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
       tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage : https://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki     : https://contextgarden.net
___________________________________________________________________________________

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