Displaying 7 results from an estimated 7 matches for "nr_running".
2012 Sep 12
2
Deadlock in btrfs-cleaner, related to snapshot deletion
...nularity : 2.000000
[ 386.319917] .sysctl_sched_child_runs_first : 0
[ 386.319920] .sysctl_sched_features : 24119
[ 386.319924] .sysctl_sched_tunable_scaling : 1 (logaritmic)
[ 386.319929]
[ 386.319929] cpu#0, 3013.515 MHz
[ 386.319933] .nr_running : 2
[ 386.319936] .load : 2048
[ 386.319939] .nr_switches : 437801
[ 386.319942] .nr_load_updates : 22334
[ 386.319945] .nr_uninterruptible : 3
[ 386.319948] .next_balance : 4294.9...
2010 Nov 18
9
Interesting problem with write data.
Hi,
Recently, I made a btrfs to use. And I met slowness problem. Trying
to diag it. I found this:
1. dd if=/dev/zero of=test count=1024 bs=1MB
This is fast, at about 25MB/s, and reasonable iowait.
2. dd if=/dev/zero of=test count=1 bs=1GB
This is pretty slow, at about 1.5MB/s, and 90%+ iowait, constantly.
May I know why it works like this? Thanks.
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2017 Oct 18
2
Null deference panic in CentOS-6.5
...ffffffff8100c20a
The [cbd] is a module developed by us, I think this bug has nothing to
do with it.
And the contents of rq in pick_next_task(struct rq *rq) is (see
attachement for full contents of struct rq):
struct rq {
lock = {
raw_lock = {
slock = 67109881
}
},
nr_running = 2,
cpu_load = {0, 5923, 14993, 13888, 9115},
last_load_update_tick = 4365159236,
nohz_balance_kick = 0 '\000',
skip_clock_update = 0,
load = {
weight = 2,
inv_weight = 0
},
nr_load_updates = 21530842,
nr_switches = 148355748,
cfs = {
l...
2013 Jun 10
1
btrfs-cleaner Blocked on xfstests 068
...ched_wakeup_granularity : 2.000000
[ 413.409157] .sysctl_sched_child_runs_first : 0
[ 413.409157] .sysctl_sched_features : 11899
[ 413.409157] .sysctl_sched_tunable_scaling : 1 (logaritmic)
[ 413.409157] cpu#0, 3389.233 MHz
[ 413.409157] .nr_running : 0
[ 413.409157] .load : 0
[ 413.409157] .nr_switches : 56682
[ 413.409157] .nr_load_updates : 19627
[ 413.409157] .nr_uninterruptible : -100
[ 413.409157] .next_balance : 4295.08...
2012 Jul 31
2
Btrfs Intermittent ENOSPC Issues
I''ve been working on running down intermittent ENOSPC issues.
I can only seem to replicate ENOSPC errors when running zlib
compression. However, I have been seeing similar ENOSPC errors to a
lesser extent when playing with the LZ4HC patches.
I apologize for not following up on this sooner, but I had drifted
away from using zlib, and didn''t notice there was still an issue.
My
2012 Aug 01
7
[PATCH] Btrfs: barrier before waitqueue_active
We need an smb_mb() before waitqueue_active to avoid missing wakeups.
Before Mitch was hitting a deadlock between the ordered flushers and the
transaction commit because the ordered flushers were waiting for more refs
and were never woken up, so those smp_mb()''s are the most important.
Everything else I added for correctness sake and to avoid getting bitten by
this again somewhere else.
2012 Oct 17
28
Xen PVM: Strange lockups when running PostgreSQL load
...of a coincidence.
Oh and the spinners count in the lock was 2 as one would
expect.
struct rq {
lock = {
raw_lock = {
{
head_tail = 512,
tickets = {
head = 0 ''\000'',
tail = 2 ''\002''
}
}
}
},
nr_running = 1,
...
}
I really don''t know how this happens. Especially cpu#0 seems at
least past the wakeup and should have removed itself from the
spinners list...
-Stefan
[1] http://bugs.launchpad.net/bugs/1011792
From 635a4e101ccbc9a324c8000f7e264ed4e646592c Mon Sep 17 00:00:00 2001
From: S...