Displaying 6 results from an estimated 6 matches for "min_vruntime".
2012 Sep 12
2
Deadlock in btrfs-cleaner, related to snapshot deletion
...6.319979] .avg_idle : 1000000
[ 386.319982] .ttwu_count : 184667
[ 386.319985] .ttwu_local : 178809
[ 386.319990]
[ 386.319990] cfs_rq[0]:/autogroup-47
[ 386.319994] .exec_clock : 13.273210
[ 386.319998] .MIN_vruntime : 0.000001
[ 386.320001] .min_vruntime : 13.529500
[ 386.320005] .max_vruntime : 0.000001
[ 386.320008] .spread : 0.000000
[ 386.320011] .spread0 : -23453.744689
[ 386.320015] .nr_spread_o...
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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2013 Jun 10
1
btrfs-cleaner Blocked on xfstests 068
...7] .cpu_load[1] : 0
[ 413.409157] .cpu_load[2] : 0
[ 413.409157] .cpu_load[3] : 0
[ 413.409157] .cpu_load[4] : 0
[ 413.409157]
cfs_rq[0]:/
[ 413.409157] .exec_clock : 0.000000
[ 413.409157] .MIN_vruntime : 0.000001
[ 413.409157] .min_vruntime : 13010.537663
[ 413.409157] .max_vruntime : 0.000001
[ 413.409157] .spread : 0.000000
[ 413.409157] .spread0 : 0.000000
[ 413.409157] .nr_spread_ove...
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
2017 Oct 18
2
Null deference panic in CentOS-6.5
...ck_update = 0,
load = {
weight = 2,
inv_weight = 0
},
nr_load_updates = 21530842,
nr_switches = 148355748,
cfs = {
load = {
weight = 2,
inv_weight = 0
},
nr_running = 1,
h_nr_running = 2,
exec_clock = 3309310258875,
min_vruntime = 1181294560093,
tasks_timeline = {
rb_node = 0x0
},
rb_leftmost = 0x0,
tasks = {
next = 0xffff88013bc568e8,
prev = 0xffff88013bc568e8
},
balance_iterator = 0xffff88013bc568e8,
curr = 0xffff88204b501e00,
next = 0x0,
last...
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.