Xen-Devel Archive on lore.kernel.org
 help / color / Atom feed
From: Juergen Gross <jgross@suse.com>
To: xen-devel@lists.xenproject.org
Cc: Juergen Gross <jgross@suse.com>, Tim Deegan <tim@xen.org>,
	Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wl@xen.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	George Dunlap <george.dunlap@eu.citrix.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>,
	Robert VanVossen <robert.vanvossen@dornerworks.com>,
	Dario Faggioli <dfaggioli@suse.com>,
	Julien Grall <julien.grall@arm.com>,
	Josh Whitehead <josh.whitehead@dornerworks.com>,
	Meng Xu <mengxu@cis.upenn.edu>, Jan Beulich <jbeulich@suse.com>
Subject: [Xen-devel] [PATCH v2 28/48] xen/sched: move struct task_slice into struct sched_unit
Date: Fri,  9 Aug 2019 16:58:13 +0200
Message-ID: <20190809145833.1020-29-jgross@suse.com> (raw)
In-Reply-To: <20190809145833.1020-1-jgross@suse.com>

In order to prepare for multiple vcpus per schedule unit move struct
task_slice in schedule() from the local stack into struct sched_unit
of the currently running unit. To make access easier for the single
schedulers add the pointer of the currently running unit as a parameter
of do_schedule().

While at it switch the tasklet_work_scheduled parameter of
do_schedule() from bool_t to bool.

As struct task_slice is only ever modified with the local schedule
lock held it is safe to directly set the different units in struct
sched_unit instead of using an on-stack copy for returning the data.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
 xen/common/sched_arinc653.c | 20 +++++++-------------
 xen/common/sched_credit.c   | 25 +++++++++++--------------
 xen/common/sched_credit2.c  | 21 +++++++++------------
 xen/common/sched_null.c     | 29 ++++++++++++++---------------
 xen/common/sched_rt.c       | 22 +++++++++++-----------
 xen/common/schedule.c       | 32 ++++++++++++++------------------
 xen/include/xen/sched-if.h  | 11 +++--------
 xen/include/xen/sched.h     |  6 ++++++
 8 files changed, 75 insertions(+), 91 deletions(-)

diff --git a/xen/common/sched_arinc653.c b/xen/common/sched_arinc653.c
index e48f2b2eb9..34efcc07c9 100644
--- a/xen/common/sched_arinc653.c
+++ b/xen/common/sched_arinc653.c
@@ -497,18 +497,14 @@ a653sched_unit_wake(const struct scheduler *ops, struct sched_unit *unit)
  *
  * @param ops       Pointer to this instance of the scheduler structure
  * @param now       Current time
- *
- * @return          Address of the UNIT structure scheduled to be run next
- *                  Amount of time to execute the returned UNIT
- *                  Flag for whether the UNIT was migrated
  */
-static struct task_slice
+static void
 a653sched_do_schedule(
     const struct scheduler *ops,
+    struct sched_unit *prev,
     s_time_t now,
-    bool_t tasklet_work_scheduled)
+    bool tasklet_work_scheduled)
 {
-    struct task_slice ret;                      /* hold the chosen domain */
     struct sched_unit *new_task = NULL;
     static unsigned int sched_index = 0;
     static s_time_t next_switch_time;
@@ -586,13 +582,11 @@ a653sched_do_schedule(
      * Return the amount of time the next domain has to run and the address
      * of the selected task's UNIT structure.
      */
-    ret.time = next_switch_time - now;
-    ret.task = new_task;
-    ret.migrated = 0;
-
-    BUG_ON(ret.time <= 0);
+    prev->next_time = next_switch_time - now;
+    prev->next_task = new_task;
+    new_task->migrated = false;
 
-    return ret;
+    BUG_ON(prev->next_time <= 0);
 }
 
 /**
diff --git a/xen/common/sched_credit.c b/xen/common/sched_credit.c
index 87cb62c632..f1675fd52e 100644
--- a/xen/common/sched_credit.c
+++ b/xen/common/sched_credit.c
@@ -1675,7 +1675,7 @@ csched_runq_steal(int peer_cpu, int cpu, int pri, int balance_step)
 
 static struct csched_unit *
 csched_load_balance(struct csched_private *prv, int cpu,
-    struct csched_unit *snext, bool_t *stolen)
+    struct csched_unit *snext, bool *stolen)
 {
     struct cpupool *c = per_cpu(cpupool, cpu);
     struct csched_unit *speer;
@@ -1791,7 +1791,7 @@ csched_load_balance(struct csched_private *prv, int cpu,
                 /* As soon as one unit is found, balancing ends */
                 if ( speer != NULL )
                 {
-                    *stolen = 1;
+                    *stolen = true;
                     /*
                      * Next time we'll look for work to steal on this node, we
                      * will start from the next pCPU, with respect to this one,
@@ -1821,19 +1821,18 @@ csched_load_balance(struct csched_private *prv, int cpu,
  * This function is in the critical path. It is designed to be simple and
  * fast for the common case.
  */
-static struct task_slice
-csched_schedule(
-    const struct scheduler *ops, s_time_t now, bool_t tasklet_work_scheduled)
+static void csched_schedule(
+    const struct scheduler *ops, struct sched_unit *unit, s_time_t now,
+    bool tasklet_work_scheduled)
 {
     const unsigned int cpu = smp_processor_id();
     const unsigned int sched_cpu = sched_get_resource_cpu(cpu);
     struct list_head * const runq = RUNQ(sched_cpu);
-    struct sched_unit *unit = current->sched_unit;
     struct csched_unit * const scurr = CSCHED_UNIT(unit);
     struct csched_private *prv = CSCHED_PRIV(ops);
     struct csched_unit *snext;
-    struct task_slice ret;
     s_time_t runtime, tslice;
+    bool migrated = false;
 
     SCHED_STAT_CRANK(schedule);
     CSCHED_UNIT_CHECK(unit);
@@ -1924,7 +1923,6 @@ csched_schedule(
                         (unsigned char *)&d);
         }
 
-        ret.migrated = 0;
         goto out;
     }
     tslice = prv->tslice;
@@ -1942,7 +1940,6 @@ csched_schedule(
     }
 
     snext = __runq_elem(runq->next);
-    ret.migrated = 0;
 
     /* Tasklet work (which runs in idle UNIT context) overrides all else. */
     if ( tasklet_work_scheduled )
@@ -1968,7 +1965,7 @@ csched_schedule(
     if ( snext->pri > CSCHED_PRI_TS_OVER )
         __runq_remove(snext);
     else
-        snext = csched_load_balance(prv, sched_cpu, snext, &ret.migrated);
+        snext = csched_load_balance(prv, sched_cpu, snext, &migrated);
 
     /*
      * Update idlers mask if necessary. When we're idling, other CPUs
@@ -1991,12 +1988,12 @@ out:
     /*
      * Return task to run next...
      */
-    ret.time = (is_idle_unit(snext->unit) ?
+    unit->next_time = (is_idle_unit(snext->unit) ?
                 -1 : tslice);
-    ret.task = snext->unit;
+    unit->next_task = snext->unit;
+    snext->unit->migrated = migrated;
 
-    CSCHED_UNIT_CHECK(ret.task);
-    return ret;
+    CSCHED_UNIT_CHECK(unit->next_task);
 }
 
 static void
diff --git a/xen/common/sched_credit2.c b/xen/common/sched_credit2.c
index 548b87af8b..98ef48d6f4 100644
--- a/xen/common/sched_credit2.c
+++ b/xen/common/sched_credit2.c
@@ -3444,19 +3444,18 @@ runq_candidate(struct csched2_runqueue_data *rqd,
  * This function is in the critical path. It is designed to be simple and
  * fast for the common case.
  */
-static struct task_slice
-csched2_schedule(
-    const struct scheduler *ops, s_time_t now, bool tasklet_work_scheduled)
+static void csched2_schedule(
+    const struct scheduler *ops, struct sched_unit *currunit, s_time_t now,
+    bool tasklet_work_scheduled)
 {
     const unsigned int cpu = smp_processor_id();
     const unsigned int sched_cpu = sched_get_resource_cpu(cpu);
     struct csched2_runqueue_data *rqd;
-    struct sched_unit *currunit = current->sched_unit;
     struct csched2_unit * const scurr = csched2_unit(currunit);
     struct csched2_unit *snext = NULL;
     unsigned int skipped_units = 0;
-    struct task_slice ret;
     bool tickled;
+    bool migrated = false;
 
     SCHED_STAT_CRANK(schedule);
     CSCHED2_UNIT_CHECK(currunit);
@@ -3541,8 +3540,6 @@ csched2_schedule(
          && unit_runnable(currunit) )
         __set_bit(__CSFLAG_delayed_runq_add, &scurr->flags);
 
-    ret.migrated = 0;
-
     /* Accounting for non-idle tasks */
     if ( !is_idle_unit(snext->unit) )
     {
@@ -3592,7 +3589,7 @@ csched2_schedule(
             snext->credit += CSCHED2_MIGRATE_COMPENSATION;
             sched_set_res(snext->unit, get_sched_res(sched_cpu));
             SCHED_STAT_CRANK(migrated);
-            ret.migrated = 1;
+            migrated = true;
         }
     }
     else
@@ -3623,11 +3620,11 @@ csched2_schedule(
     /*
      * Return task to run next...
      */
-    ret.time = csched2_runtime(ops, sched_cpu, snext, now);
-    ret.task = snext->unit;
+    currunit->next_time = csched2_runtime(ops, sched_cpu, snext, now);
+    currunit->next_task = snext->unit;
+    snext->unit->migrated = migrated;
 
-    CSCHED2_UNIT_CHECK(ret.task);
-    return ret;
+    CSCHED2_UNIT_CHECK(currunit->next_task);
 }
 
 static void
diff --git a/xen/common/sched_null.c b/xen/common/sched_null.c
index 56ef078c5a..397edcbc83 100644
--- a/xen/common/sched_null.c
+++ b/xen/common/sched_null.c
@@ -779,16 +779,14 @@ static inline void null_unit_check(struct sched_unit *unit)
  *  - the unit assigned to the pCPU, if there's one and it can run;
  *  - the idle unit, otherwise.
  */
-static struct task_slice null_schedule(const struct scheduler *ops,
-                                       s_time_t now,
-                                       bool_t tasklet_work_scheduled)
+static void null_schedule(const struct scheduler *ops, struct sched_unit *prev,
+                          s_time_t now, bool tasklet_work_scheduled)
 {
     unsigned int bs;
     const unsigned int cpu = smp_processor_id();
     const unsigned int sched_cpu = sched_get_resource_cpu(cpu);
     struct null_private *prv = null_priv(ops);
     struct null_unit *wvc;
-    struct task_slice ret;
 
     SCHED_STAT_CRANK(schedule);
     NULL_UNIT_CHECK(current->sched_unit);
@@ -816,19 +814,18 @@ static struct task_slice null_schedule(const struct scheduler *ops,
     if ( tasklet_work_scheduled )
     {
         trace_var(TRC_SNULL_TASKLET, 1, 0, NULL);
-        ret.task = sched_idle_unit(sched_cpu);
+        prev->next_task = sched_idle_unit(sched_cpu);
     }
     else
-        ret.task = per_cpu(npc, sched_cpu).unit;
-    ret.migrated = 0;
-    ret.time = -1;
+        prev->next_task = per_cpu(npc, sched_cpu).unit;
+    prev->next_time = -1;
 
     /*
      * We may be new in the cpupool, or just coming back online. In which
      * case, there may be units in the waitqueue that we can assign to us
      * and run.
      */
-    if ( unlikely(ret.task == NULL) )
+    if ( unlikely(prev->next_task == NULL) )
     {
         spin_lock(&prv->waitq_lock);
 
@@ -854,7 +851,7 @@ static struct task_slice null_schedule(const struct scheduler *ops,
                 {
                     unit_assign(prv, wvc->unit, sched_cpu);
                     list_del_init(&wvc->waitq_elem);
-                    ret.task = wvc->unit;
+                    prev->next_task = wvc->unit;
                     goto unlock;
                 }
             }
@@ -862,15 +859,17 @@ static struct task_slice null_schedule(const struct scheduler *ops,
  unlock:
         spin_unlock(&prv->waitq_lock);
 
-        if ( ret.task == NULL && !cpumask_test_cpu(cpu, &prv->cpus_free) )
+        if ( prev->next_task == NULL &&
+             !cpumask_test_cpu(cpu, &prv->cpus_free) )
             cpumask_set_cpu(cpu, &prv->cpus_free);
     }
 
-    if ( unlikely(ret.task == NULL || !unit_runnable(ret.task)) )
-        ret.task = sched_idle_unit(sched_cpu);
+    if ( unlikely(prev->next_task == NULL || !unit_runnable(prev->next_task)) )
+        prev->next_task = sched_idle_unit(sched_cpu);
 
-    NULL_UNIT_CHECK(ret.task);
-    return ret;
+    NULL_UNIT_CHECK(prev->next_task);
+
+    prev->next_task->migrated = false;
 }
 
 static inline void dump_unit(struct null_private *prv, struct null_unit *nvc)
diff --git a/xen/common/sched_rt.c b/xen/common/sched_rt.c
index 7b9d25f138..fcbfa528f4 100644
--- a/xen/common/sched_rt.c
+++ b/xen/common/sched_rt.c
@@ -1054,16 +1054,16 @@ runq_pick(const struct scheduler *ops, const cpumask_t *mask)
  * schedule function for rt scheduler.
  * The lock is already grabbed in schedule.c, no need to lock here
  */
-static struct task_slice
-rt_schedule(const struct scheduler *ops, s_time_t now, bool_t tasklet_work_scheduled)
+static void
+rt_schedule(const struct scheduler *ops, struct sched_unit *currunit,
+            s_time_t now, bool tasklet_work_scheduled)
 {
     const unsigned int cpu = smp_processor_id();
     const unsigned int sched_cpu = sched_get_resource_cpu(cpu);
     struct rt_private *prv = rt_priv(ops);
-    struct rt_unit *const scurr = rt_unit(current->sched_unit);
+    struct rt_unit *const scurr = rt_unit(currunit);
     struct rt_unit *snext = NULL;
-    struct task_slice ret = { .migrated = 0 };
-    struct sched_unit *currunit = current->sched_unit;
+    bool migrated = false;
 
     /* TRACE */
     {
@@ -1111,7 +1111,7 @@ rt_schedule(const struct scheduler *ops, s_time_t now, bool_t tasklet_work_sched
         __set_bit(__RTDS_delayed_runq_add, &scurr->flags);
 
     snext->last_start = now;
-    ret.time =  -1; /* if an idle unit is picked */
+    currunit->next_time =  -1; /* if an idle unit is picked */
     if ( !is_idle_unit(snext->unit) )
     {
         if ( snext != scurr )
@@ -1122,13 +1122,13 @@ rt_schedule(const struct scheduler *ops, s_time_t now, bool_t tasklet_work_sched
         if ( sched_unit_cpu(snext->unit) != sched_cpu )
         {
             sched_set_res(snext->unit, get_sched_res(sched_cpu));
-            ret.migrated = 1;
+            migrated = true;
         }
-        ret.time = snext->cur_budget; /* invoke the scheduler next time */
+        /* Invoke the scheduler next time. */
+        currunit->next_time = snext->cur_budget;
     }
-    ret.task = snext->unit;
-
-    return ret;
+    currunit->next_task = snext->unit;
+    snext->unit->migrated = migrated;
 }
 
 /*
diff --git a/xen/common/schedule.c b/xen/common/schedule.c
index e4d0dd4b65..d2fc89d983 100644
--- a/xen/common/schedule.c
+++ b/xen/common/schedule.c
@@ -105,15 +105,14 @@ sched_idle_free_vdata(const struct scheduler *ops, void *priv)
 {
 }
 
-static struct task_slice sched_idle_schedule(
-    const struct scheduler *ops, s_time_t now,
+static void sched_idle_schedule(
+    const struct scheduler *ops, struct sched_unit *unit, s_time_t now,
     bool tasklet_work_scheduled)
 {
     const unsigned int cpu = smp_processor_id();
-    struct task_slice ret = { .time = -1 };
 
-    ret.task = sched_idle_unit(sched_get_resource_cpu(cpu));
-    return ret;
+    unit->next_time = -1;
+    unit->next_task = sched_idle_unit(sched_get_resource_cpu(cpu));
 }
 
 static struct scheduler sched_idle_ops = {
@@ -1698,10 +1697,9 @@ static void schedule(void)
     s_time_t              now;
     struct scheduler     *sched;
     unsigned long        *tasklet_work = &this_cpu(tasklet_work_to_do);
-    bool_t                tasklet_work_scheduled = 0;
+    bool                  tasklet_work_scheduled = false;
     struct sched_resource *sd;
     spinlock_t           *lock;
-    struct task_slice     next_slice;
     int cpu = smp_processor_id();
 
     ASSERT_NOT_IN_ATOMIC();
@@ -1717,12 +1715,12 @@ static void schedule(void)
         set_bit(_TASKLET_scheduled, tasklet_work);
         /* fallthrough */
     case TASKLET_enqueued|TASKLET_scheduled:
-        tasklet_work_scheduled = 1;
+        tasklet_work_scheduled = true;
         break;
     case TASKLET_scheduled:
         clear_bit(_TASKLET_scheduled, tasklet_work);
     case 0:
-        /*tasklet_work_scheduled = 0;*/
+        /*tasklet_work_scheduled = false;*/
         break;
     default:
         BUG();
@@ -1736,14 +1734,14 @@ static void schedule(void)
 
     /* get policy-specific decision on scheduling... */
     sched = this_cpu(scheduler);
-    next_slice = sched->do_schedule(sched, now, tasklet_work_scheduled);
+    sched->do_schedule(sched, prev, now, tasklet_work_scheduled);
 
-    next = next_slice.task;
+    next = prev->next_task;
 
     sd->curr = next;
 
-    if ( next_slice.time >= 0 ) /* -ve means no limit */
-        set_timer(&sd->s_timer, now + next_slice.time);
+    if ( prev->next_time >= 0 ) /* -ve means no limit */
+        set_timer(&sd->s_timer, now + prev->next_time);
 
     if ( unlikely(prev == next) )
     {
@@ -1751,9 +1749,7 @@ static void schedule(void)
         TRACE_4D(TRC_SCHED_SWITCH_INFCONT,
                  next->domain->domain_id, next->unit_id,
                  now - prev->state_entry_time,
-                 next_slice.time);
-        trace_continue_running(next->vcpu_list);
-        return continue_running(prev->vcpu_list);
+                 prev->next_time);
     }
 
     TRACE_3D(TRC_SCHED_SWITCH_INFPREV,
@@ -1763,7 +1759,7 @@ static void schedule(void)
              next->domain->domain_id, next->unit_id,
              (next->vcpu_list->runstate.state == RUNSTATE_runnable) ?
              (now - next->state_entry_time) : 0,
-             next_slice.time);
+             prev->next_time);
 
     ASSERT(prev->vcpu_list->runstate.state == RUNSTATE_running);
 
@@ -1792,7 +1788,7 @@ static void schedule(void)
 
     stop_timer(&prev->vcpu_list->periodic_timer);
 
-    if ( next_slice.migrated )
+    if ( next->migrated )
         vcpu_move_irqs(next->vcpu_list);
 
     vcpu_periodic_timer_work(next->vcpu_list);
diff --git a/xen/include/xen/sched-if.h b/xen/include/xen/sched-if.h
index 1a3981e78a..ba91c3a680 100644
--- a/xen/include/xen/sched-if.h
+++ b/xen/include/xen/sched-if.h
@@ -195,12 +195,6 @@ static inline spinlock_t *pcpu_schedule_trylock(unsigned int cpu)
     return NULL;
 }
 
-struct task_slice {
-    struct sched_unit *task;
-    s_time_t           time;
-    bool_t             migrated;
-};
-
 struct scheduler {
     char *name;             /* full name for this scheduler      */
     char *opt_name;         /* option name for this scheduler    */
@@ -243,8 +237,9 @@ struct scheduler {
     void         (*context_saved)  (const struct scheduler *,
                                     struct sched_unit *);
 
-    struct task_slice (*do_schedule) (const struct scheduler *, s_time_t,
-                                      bool_t tasklet_work_scheduled);
+    void         (*do_schedule)    (const struct scheduler *,
+                                    struct sched_unit *, s_time_t,
+                                    bool tasklet_work_scheduled);
 
     struct sched_resource * (*pick_resource) (const struct scheduler *,
                                               struct sched_unit *);
diff --git a/xen/include/xen/sched.h b/xen/include/xen/sched.h
index 7f84b823cb..9a17962132 100644
--- a/xen/include/xen/sched.h
+++ b/xen/include/xen/sched.h
@@ -281,12 +281,18 @@ struct sched_unit {
     bool                   is_running;
     /* Does soft affinity actually play a role (given hard affinity)? */
     bool                   soft_aff_effective;
+    /* Item has been migrated to other cpu(s). */
+    bool                   migrated;
     /* Bitmask of CPUs on which this VCPU may run. */
     cpumask_var_t          cpu_hard_affinity;
     /* Used to save affinity during temporary pinning. */
     cpumask_var_t          cpu_hard_affinity_saved;
     /* Bitmask of CPUs on which this VCPU prefers to run. */
     cpumask_var_t          cpu_soft_affinity;
+
+    /* Next unit to run. */
+    struct sched_unit      *next_task;
+    s_time_t                next_time;
 };
 
 #define for_each_sched_unit(d, e)                                         \
-- 
2.16.4


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

  parent reply index

Thread overview: 126+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-09 14:57 [Xen-devel] [PATCH v2 00/48] xen: add core scheduling support Juergen Gross
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 01/48] xen/sched: use new sched_unit instead of vcpu in scheduler interfaces Juergen Gross
2019-09-02  9:07   ` Jan Beulich
2019-09-09  5:26     ` Juergen Gross
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 02/48] xen/sched: move per-vcpu scheduler private data pointer to sched_unit Juergen Gross
2019-08-23 10:47   ` Dario Faggioli
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 03/48] xen/sched: build a linked list of struct sched_unit Juergen Gross
2019-08-23 10:52   ` Dario Faggioli
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 04/48] xen/sched: introduce struct sched_resource Juergen Gross
2019-08-23 10:54   ` Dario Faggioli
2019-09-04 13:10   ` Jan Beulich
2019-09-09  5:31     ` Juergen Gross
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 05/48] xen/sched: let pick_cpu return a scheduler resource Juergen Gross
2019-09-04 13:34   ` Jan Beulich
2019-09-09  5:43     ` Juergen Gross
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 06/48] xen/sched: switch schedule_data.curr to point at sched_unit Juergen Gross
2019-09-04 13:36   ` Jan Beulich
2019-09-09  5:46     ` Juergen Gross
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 07/48] xen/sched: move per cpu scheduler private data into struct sched_resource Juergen Gross
2019-09-04 13:48   ` Jan Beulich
2019-09-05  7:13     ` Juergen Gross
2019-09-05  7:38       ` Jan Beulich
2019-09-09 13:03         ` Dario Faggioli
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 08/48] xen/sched: switch vcpu_schedule_lock to unit_schedule_lock Juergen Gross
2019-09-04 14:02   ` Jan Beulich
2019-09-04 14:41     ` Juergen Gross
2019-09-04 14:54       ` Jan Beulich
2019-09-04 15:02         ` Juergen Gross
2019-09-11 16:02           ` Dario Faggioli
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 09/48] xen/sched: move some per-vcpu items to struct sched_unit Juergen Gross
2019-09-04 14:16   ` Jan Beulich
2019-09-09  6:39     ` Juergen Gross
2019-09-09  6:55       ` Jan Beulich
2019-09-09  7:05         ` Juergen Gross
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 10/48] xen/sched: add scheduler helpers hiding vcpu Juergen Gross
2019-09-04 14:49   ` Jan Beulich
2019-09-11 13:22     ` Juergen Gross
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 11/48] xen/sched: rename scheduler related perf counters Juergen Gross
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 12/48] xen/sched: switch struct task_slice from vcpu to sched_unit Juergen Gross
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 13/48] xen/sched: add is_running indicator to struct sched_unit Juergen Gross
2019-09-04 15:06   ` Jan Beulich
2019-09-11 13:44     ` Juergen Gross
2019-09-11 15:06       ` Jan Beulich
2019-09-11 15:32         ` Juergen Gross
2019-08-09 14:57 ` [Xen-devel] [PATCH v2 14/48] xen/sched: make null scheduler vcpu agnostic Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 15/48] xen/sched: make rt " Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 16/48] xen/sched: make credit " Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 17/48] xen/sched: make credit2 " Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 18/48] xen/sched: make arinc653 " Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 19/48] xen: add sched_unit_pause_nosync() and sched_unit_unpause() Juergen Gross
2019-09-09 13:34   ` Jan Beulich
2019-09-11 14:15     ` Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 20/48] xen: let vcpu_create() select processor Juergen Gross
2019-08-23 16:42   ` Julien Grall
2019-09-09 13:38   ` Jan Beulich
2019-09-11 14:22     ` Juergen Gross
2019-09-11 17:20       ` Dario Faggioli
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 21/48] xen/sched: use sched_resource cpu instead smp_processor_id in schedulers Juergen Gross
2019-09-09 14:17   ` Jan Beulich
2019-09-12  9:34     ` Juergen Gross
2019-09-12 10:04       ` Jan Beulich
2019-09-12 11:03         ` Juergen Gross
2019-09-12 11:17         ` Juergen Gross
2019-09-12 11:46           ` Jan Beulich
2019-09-12 11:53             ` Juergen Gross
2019-09-12 12:08               ` Jan Beulich
2019-09-12 12:13                 ` Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 22/48] xen/sched: switch schedule() from vcpus to sched_units Juergen Gross
2019-09-09 14:35   ` Jan Beulich
2019-09-12 13:44     ` Juergen Gross
2019-09-12 14:34       ` Jan Beulich
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 23/48] xen/sched: switch sched_move_irqs() to take sched_unit as parameter Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 24/48] xen: switch from for_each_vcpu() to for_each_sched_unit() Juergen Gross
2019-09-09 15:14   ` Jan Beulich
2019-09-12 14:02     ` Juergen Gross
2019-09-12 14:40       ` Jan Beulich
2019-09-12 14:47         ` Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 25/48] xen/sched: add runstate counters to struct sched_unit Juergen Gross
2019-09-09 14:30   ` Jan Beulich
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 26/48] xen/sched: rework and rename vcpu_force_reschedule() Juergen Gross
2019-09-10 14:06   ` Jan Beulich
2019-09-13  9:33     ` Juergen Gross
2019-09-13  9:40       ` Jan Beulich
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 27/48] xen/sched: Change vcpu_migrate_*() to operate on schedule unit Juergen Gross
2019-09-10 15:11   ` Jan Beulich
2019-09-13 12:33     ` Juergen Gross
2019-08-09 14:58 ` Juergen Gross [this message]
2019-09-10 15:18   ` [Xen-devel] [PATCH v2 28/48] xen/sched: move struct task_slice into struct sched_unit Jan Beulich
2019-09-13 12:56     ` Juergen Gross
2019-09-12  8:13   ` Dario Faggioli
2019-09-12  8:21     ` Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 29/48] xen/sched: add code to sync scheduling of all vcpus of a sched unit Juergen Gross
2019-09-10 15:36   ` Jan Beulich
2019-09-13 13:12     ` Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 30/48] xen/sched: introduce unit_runnable_state() Juergen Gross
2019-09-11 10:30   ` Jan Beulich
2019-09-12 10:22     ` Dario Faggioli
2019-09-13 14:07     ` Juergen Gross
2019-09-13 14:44       ` Jan Beulich
2019-09-13 15:23         ` Juergen Gross
2019-09-12 10:24   ` Dario Faggioli
2019-09-13 14:14     ` Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 31/48] xen/sched: add support for multiple vcpus per sched unit where missing Juergen Gross
2019-09-11 10:43   ` Jan Beulich
2019-09-13 15:01     ` Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 32/48] xen/sched: modify cpupool_domain_cpumask() to be an unit mask Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 33/48] xen/sched: support allocating multiple vcpus into one sched unit Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 34/48] xen/sched: add a percpu resource index Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 35/48] xen/sched: add fall back to idle vcpu when scheduling unit Juergen Gross
2019-09-11 11:33   ` Julien Grall
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 36/48] xen/sched: make vcpu_wake() and vcpu_sleep() core scheduling aware Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 37/48] xen/sched: carve out freeing sched_unit memory into dedicated function Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 38/48] xen/sched: move per-cpu variable scheduler to struct sched_resource Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 39/48] xen/sched: move per-cpu variable cpupool " Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 40/48] xen/sched: reject switching smt on/off with core scheduling active Juergen Gross
2019-09-10 15:47   ` Jan Beulich
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 41/48] xen/sched: prepare per-cpupool scheduling granularity Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 42/48] xen/sched: split schedule_cpu_switch() Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 43/48] xen/sched: protect scheduling resource via rcu Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 44/48] xen/sched: support multiple cpus per scheduling resource Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 45/48] xen/sched: support differing granularity in schedule_cpu_[add/rm]() Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 46/48] xen/sched: support core scheduling for moving cpus to/from cpupools Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 47/48] xen/sched: disable scheduling when entering ACPI deep sleep states Juergen Gross
2019-08-09 14:58 ` [Xen-devel] [PATCH v2 48/48] xen/sched: add scheduling granularity enum Juergen Gross
2019-08-15 10:17 ` [Xen-devel] [PATCH v2 00/48] xen: add core scheduling support Sergey Dyasli
2019-09-05  6:22   ` Juergen Gross

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190809145833.1020-29-jgross@suse.com \
    --to=jgross@suse.com \
    --cc=andrew.cooper3@citrix.com \
    --cc=dfaggioli@suse.com \
    --cc=george.dunlap@eu.citrix.com \
    --cc=ian.jackson@eu.citrix.com \
    --cc=jbeulich@suse.com \
    --cc=josh.whitehead@dornerworks.com \
    --cc=julien.grall@arm.com \
    --cc=konrad.wilk@oracle.com \
    --cc=mengxu@cis.upenn.edu \
    --cc=robert.vanvossen@dornerworks.com \
    --cc=sstabellini@kernel.org \
    --cc=tim@xen.org \
    --cc=wl@xen.org \
    --cc=xen-devel@lists.xenproject.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Xen-Devel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/xen-devel/0 xen-devel/git/0.git
	git clone --mirror https://lore.kernel.org/xen-devel/1 xen-devel/git/1.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 xen-devel xen-devel/ https://lore.kernel.org/xen-devel \
		xen-devel@lists.xenproject.org xen-devel@lists.xen.org
	public-inbox-index xen-devel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.xenproject.lists.xen-devel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git