HEADSUP: KSE about to become a kernel option

[Kip Macy]

Missed merge - should be easy to fix

On 10/26/06, Jiawei Ye <leafy7382 at gmail.com> wrote:
> On 10/27/06, David Xu <davidxu at freebsd.org> wrote:
> > I assume that without KSE, the scheduler's code size is reduced, this
> saves
> > I-CACHE and execution time.
> >
> > David Xu
> Is SCHED_CORE compatible with this change? I get
>
> cc -c -mtune=pentium4 -march=pentium2 -std=c99 -g -Wall
> -Wredundant-decls -Wnested-externs -Wstrict-prototypes
> -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  -Wundef
> -fformat-extensions -nostdinc -I-  -I. -I/usr/src/sys
> -I/usr/src/sys/contrib/altq -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS
> -include opt_global.h -fno-common -finline-limit=8000 --param
> inline-unit-growth=100 --param large-function-growth=1000
> -mno-align-long-strings -mpreferred-stack-boundary=2  -mno-mmx
> -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -ffreestanding -Werror
> /usr/src/sys/kern/sched_core.c
> /usr/src/sys/kern/sched_core.c:356: warning: "struct ksegrp" declared
> inside parameter list
> /usr/src/sys/kern/sched_core.c:356: warning: its scope is only this
> definition or declaration, which is probably not what you want
> /usr/src/sys/kern/sched_core.c:372: warning: "struct ksegrp" declared
> inside parameter list
> /usr/src/sys/kern/sched_core.c:374: warning: "struct ksegrp" declared
> inside parameter list
> /usr/src/sys/kern/sched_core.c:618: warning: "struct ksegrp" declared
> inside parameter list
> /usr/src/sys/kern/sched_core.c:619: error: conflicting types for
> 'sched_is_timeshare'
> /usr/src/sys/kern/sched_core.c:372: error: previous declaration of
> 'sched_is_timeshare' was here
> /usr/src/sys/kern/sched_core.c:619: error: conflicting types for
> 'sched_is_timeshare'
> /usr/src/sys/kern/sched_core.c:372: error: previous declaration of
> 'sched_is_timeshare' was here
> /usr/src/sys/kern/sched_core.c: In function `sched_is_timeshare':
> /usr/src/sys/kern/sched_core.c:620: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c: At top level:
> /usr/src/sys/kern/sched_core.c:624: warning: "struct ksegrp" declared
> inside parameter list
> /usr/src/sys/kern/sched_core.c:625: error: conflicting types for
> 'sched_calc_pri'
> /usr/src/sys/kern/sched_core.c:374: error: previous declaration of
> 'sched_calc_pri' was here
> /usr/src/sys/kern/sched_core.c:625: error: conflicting types for
> 'sched_calc_pri'
> /usr/src/sys/kern/sched_core.c:374: error: previous declaration of
> 'sched_calc_pri' was here
> /usr/src/sys/kern/sched_core.c: In function `sched_calc_pri':
> /usr/src/sys/kern/sched_core.c:629: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:630: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:630: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:637: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c: In function `sched_recalc_pri':
> /usr/src/sys/kern/sched_core.c:647: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c:649: warning: passing arg 1 of
> `sched_is_timeshare' from incompatible pointer type
> /usr/src/sys/kern/sched_core.c:650: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:661: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:663: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:671: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:673: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:675: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:683: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:686: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:687: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:691: warning: passing arg 1 of
> `sched_calc_pri' from incompatible pointer type
> /usr/src/sys/kern/sched_core.c: In function `sched_update_runtime':
> /usr/src/sys/kern/sched_core.c:698: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c:700: warning: passing arg 1 of
> `sched_is_timeshare' from incompatible pointer type
> /usr/src/sys/kern/sched_core.c:708: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:709: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c: In function `sched_commit_runtime':
> /usr/src/sys/kern/sched_core.c:717: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c:719: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:719: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:720: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:722: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:722: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:723: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c: In function `schedinit':
> /usr/src/sys/kern/sched_core.c:815: error: `ksegrp0' undeclared (first
> use in this function)
> /usr/src/sys/kern/sched_core.c:815: error: (Each undeclared identifier
> is reported only once
> /usr/src/sys/kern/sched_core.c:815: error: for each function it appears in.)
> /usr/src/sys/kern/sched_core.c: In function `sched_unlend_prio':
> /usr/src/sys/kern/sched_core.c:911: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c: In function `sched_prio':
> /usr/src/sys/kern/sched_core.c:926: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c: At top level:
> /usr/src/sys/kern/sched_core.c:952: warning: "struct ksegrp" declared
> inside parameter list
> /usr/src/sys/kern/sched_core.c:953: error: conflicting types for
> 'sched_user_prio'
> /usr/src/sys/sys/sched.h:83: error: previous declaration of
> 'sched_user_prio' was here
> /usr/src/sys/kern/sched_core.c:953: error: conflicting types for
> 'sched_user_prio'
> /usr/src/sys/sys/sched.h:83: error: previous declaration of
> 'sched_user_prio' was here
> /usr/src/sys/kern/sched_core.c: In function `sched_user_prio':
> /usr/src/sys/kern/sched_core.c:957: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:961: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:963: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:967: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:970: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:971: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c: In function `sched_lend_user_prio':
> /usr/src/sys/kern/sched_core.c:984: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c:985: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c: In function `sched_unlend_user_prio':
> /usr/src/sys/kern/sched_core.c:994: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c:997: error: dereferencing pointer to
> incomplete type
> /usr/src/sys/kern/sched_core.c:1000: warning: passing arg 1 of
> `sched_user_prio' from incompatible pointer type
> /usr/src/sys/kern/sched_core.c: In function `sched_switch':
> /usr/src/sys/kern/sched_core.c:1017: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c:1030: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c:1039: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c:1039: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c:1046: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c:1057: error: structure has no member
> named `td_ksegrp'
> /usr/src/sys/kern/sched_core.c: In function `sched_nice':
> /usr/src/sys/kern/sched_core.c:1094: warning: implicit declaration of
> function `FOREACH_KSEGRP_IN_PROC'
> /usr/src/sys/kern/sched_core.c:1094: warning: nested extern
> declaration of `FOREACH_KSEGRP_IN_PROC'
> /usr/src/sys/kern/sched_core.c:1094: error: syntax error before '{' token
> /usr/src/sys/kern/sched_core.c:1097: warning: implicit declaration of
> function `FOREACH_THREAD_IN_GROUP'
> /usr/src/sys/kern/sched_core.c:1097: warning: nested extern
> declaration of `FOREACH_THREAD_IN_GROUP'
> /usr/src/sys/kern/sched_core.c:1098: error: syntax error before "td"
> /usr/src/sys/kern/sched_core.c: At top level:
> /usr/src/sys/kern/sched_core.c:356: warning: 'slot_fill' declared
> `static' but never defined
> /usr/src/sys/kern/sched_core.c:578: warning: 'kseq_choose' defined but not
> used
> /usr/src/sys/kern/sched_core.c:372: warning: 'sched_is_timeshare'
> declared `static' but never defined
> /usr/src/sys/kern/sched_core.c:373: warning: 'sched_choose' declared
> `static' but never defined
> /usr/src/sys/kern/sched_core.c:374: warning: 'sched_calc_pri' declared
> `static' but never defined
> /usr/src/sys/kern/sched_core.c:375: warning: 'sched_starving' declared
> `static' but never defined
> /usr/src/sys/kern/sched_core.c:837: warning: 'sched_pctcpu_update'
> defined but not used
> /usr/src/sys/kern/sched_core.c:642: warning: 'sched_recalc_pri'
> defined but not used
> /usr/src/sys/kern/sched_core.c:716: warning: 'sched_commit_runtime'
> defined but not used
> /usr/src/sys/kern/sched_core.c:433: warning: 'krunq_check' defined but not
> used
> *** Error code 1
>
> Stop in /usr/obj/usr/src/sys/MAIL.
> *** Error code 1
>
> Stop in /usr/src.
> *** Error code 1
>
> Stop in /usr/src.
>
>
> Jiawei Ye
> --
> "If it looks like a duck, walks like a duck, and quacks like a duck,
> then to the end user it's a duck, and end users have made it pretty
> clear they want a duck; whether the duck drinks hot chocolate or
> coffee is irrelevant."
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