Sebastien Bourdeauducq
f3f83174b1
test: check that DMA can underflow
2017-10-31 00:10:13 +08:00
Sebastien Bourdeauducq
415fa00846
test: relax rtio test_loopback
2017-10-30 23:07:54 +08:00
Sebastien Bourdeauducq
20a5f095f8
test: use longer DMA sequence when playing it back repeatedly
...
The CPU has to keep up.
2017-10-30 23:06:38 +08:00
Sebastien Bourdeauducq
9bf189ca10
test: relax timing requirements when not using DMA handle
...
core_dma.playback() without handle incurs a round-trip with the comms
CPU and should not be used in critical real-time sections.
Closes #834 .
2017-10-30 22:57:12 +08:00
Sebastien Bourdeauducq
5437f0e3e3
rtio: make sequence errors consistently asychronous
2017-09-29 14:40:06 +08:00
Sebastien Bourdeauducq
4e31e9a9ac
test: relax test_rtio.test_loopback
...
With SED there are 8 additional FIFO output stages.
2017-09-26 17:13:02 +08:00
Sebastien Bourdeauducq
53860868f4
test/rtio: wait for counter >= now before checking for async errors
2017-09-16 17:52:39 +08:00
Sebastien Bourdeauducq
770ce2658f
test: adapt SequenceError test to SED
2017-09-16 16:28:57 +08:00
Sebastien Bourdeauducq
6262969d46
test: relax test_dma_record_time
2017-06-21 18:33:58 +08:00
Sebastien Bourdeauducq
5fc953119e
fix usage of CommMgmt
2017-05-22 17:32:11 +08:00
Sebastien Bourdeauducq
5ccca74a3f
fold comm device into core device
2017-05-22 15:45:45 +08:00
whitequark
ed2b10c5aa
compiler: in codegen for delay(), round fp instead of truncating.
...
Consider delay(8*us). It results in the following computation...
>>> 8*1e-06/1e-09
7999.999999999999
with the result promptly getting truncated to 7999.
Fixes #706 .
2017-04-21 17:36:44 +00:00
whitequark
fd994ceef3
DMA: various fixes to bring tests in line.
2017-04-20 20:05:03 +00:00
Sebastien Bourdeauducq
e8f7f8ef9c
DMA: speed up playback
...
Time reduced from 1.53µs to 1.37µs.
2017-04-19 10:59:12 +08:00
whitequark
41c4de4556
DMA: add API for a much faster replay using handles.
2017-04-18 08:20:12 +00:00
whitequark
9dfe9c1248
DMA: improve recording performance.
...
This commit moves DMA serialization code to the kernel CPU
(to cope with the existence of rtio_output_wide) and batches
the resulting sequences. This results in less data being transferred
between kernel and comms CPUs (24 octets with one pointer before,
18 octets with no pointers now, for the common case of rtio_output),
but most importantly reduces cache flushes, which now happen
once per 64k octets.
On average, it now takes about 15us to record a single RTIO event
in a DMA trace.
Fixes #712 .
2017-04-15 07:29:52 +00:00
Sebastien Bourdeauducq
f314f8b8f5
relax test_rpc_timing
2017-04-08 22:45:08 +08:00
whitequark
14ae1cc100
runtime: advance now on DMA replay.
...
Fixes #700 .
2017-04-05 18:34:36 +00:00
whitequark
56918fb375
test: re-enable DMA tests as the feature is now stable.
2017-04-05 16:43:22 +00:00
whitequark
8b98e1ea6d
test: relax test_rpc_timing: rpc_time_mean <2ms → <3ms.
2017-03-31 20:41:47 +00:00
whitequark
245e186347
Commit missing parts of 948ed6fb
.
2017-03-29 18:34:08 +00:00
Sebastien Bourdeauducq
2e2d0be201
skip crashing DMA tests on buildbot
2017-03-29 09:36:51 +08:00
whitequark
7eb368fd5d
test: add DMA test that checks the analyzer trace.
2017-03-28 14:22:20 +00:00
Sebastien Bourdeauducq
6caab4d10b
test: verify that RTIO collisions appear in log
2017-03-27 18:08:03 +08:00
Sebastien Bourdeauducq
70343b244d
test: add more RTIO slack in test_clock_generator_loopback
2017-03-27 17:26:23 +08:00
Sebastien Bourdeauducq
58ee09dbdc
test: re-enable test_clock_generator_loopback
...
It passes now for some reason.
2017-03-27 17:26:02 +08:00
Sebastien Bourdeauducq
b74d6fb9ba
make collision and busy asynchronous errors, and simplify CPU/gateware handshake for output errors and reads
2017-03-27 16:32:23 +08:00
Sebastien Bourdeauducq
1ee3f96482
test: self.break_realtime → self.core.break_realtime
2017-03-27 16:31:11 +08:00
whitequark
ac9e8b8568
test: avoid underflow in DMA replay test.
2017-03-17 12:09:02 +00:00
whitequark
dbea679e96
Revert "test: relax test_rpc_timing on Windows."
...
This reverts commit e9cf451c0b
.
2017-03-17 11:34:45 +00:00
whitequark
e9cf451c0b
test: relax test_rpc_timing on Windows.
2017-03-17 11:20:16 +00:00
whitequark
7dc7dcda2c
test: relax test_pulse_rate_dds to only catch catastrophic slowdown.
2017-03-17 11:17:47 +00:00
Sebastien Bourdeauducq
f121ca20fe
test: relax test_pulse_rate_dds
2017-03-03 18:10:27 +08:00
whitequark
a4ece19614
Implement DMA playback.
2017-02-28 21:28:40 +00:00
whitequark
9c93c760fc
firmware: do not use PIC in Rust code.
...
This fixes test_pulse_rate and test_pulse_rate_dds by making
rtio_output slightly faster.
2017-02-02 12:22:55 +00:00
whitequark
609fd3d902
test: skip test_clock_generator_loopback as well.
...
Both tests pass locally, which means there's some conda screwup
that prevents them from working on CI.
2017-01-27 11:47:26 +00:00
whitequark
c529cefc89
conda: bump llvmlite-artiq dependency.
2017-01-27 11:14:53 +00:00
whitequark
477664f931
test: temporarily skip pulse_rate_dds.
2017-01-26 20:53:30 +00:00
whitequark
0b67396630
test: convert test_pulse_rate_dds to use mu.
...
Before this commit, this test was actually measuring soft-FP
performance.
2017-01-25 11:26:30 +00:00
whitequark
3485c83429
Fix tests.
2016-11-21 06:40:47 +00:00
whitequark
009d396740
Move mu_to_seconds, seconds_to_mu to Core.
2016-11-21 05:37:30 +00:00
whitequark
feed91d8b2
runtime: buffer RPC send packets.
...
This brings mean RPC time from ~45ms to ~2ms.
The cause of the slowness without buffering is, primarily, that lwip
is severely pessimized by small writes, whether with Nagle on or off.
(In fact, disabling Nagle makes it function *better* on many small
writes, which begs the question of what's the point of having Nagle
there in the first place.) In practical terms, the slowness appears
only when writing a 4-byte buffer (the synchronization segment);
writing buffers of other sizes does not trigger the problem.
This all is extremely confusing and the fix is partly palliative,
but since it seems to work reliably and we're migrating off lwip
I think it is unwise to spend any more time debugging this.
2016-11-12 23:06:33 +00:00
Sebastien Bourdeauducq
1cb8f642b4
test: level-based TTL APIs ( #218 )
2016-09-07 17:37:49 +08:00
whitequark
b6c12f2f56
test: relax RPCTiming rpc_time_stddev from 1ms to 2ms.
...
Even when given exclusive access to our buildserver it still gives
false positives with 1ms.
2016-07-14 10:47:51 +00:00
Sebastien Bourdeauducq
43681b37ec
test/rtio: relax constraints
2016-06-29 11:38:36 +08:00
Sebastien Bourdeauducq
e51928ee97
test/rtio: adapt to new handover behavior
2016-06-29 10:38:37 +08:00
Sebastien Bourdeauducq
c8dc6ca07c
inter-experiment smooth handover
2016-06-29 02:37:50 +08:00
Sebastien Bourdeauducq
917cc056f4
test: add test for seamless handover on exception termination
2016-06-19 19:15:10 +08:00
Sebastien Bourdeauducq
136dc7039e
language/environment: update kernel_invariants in setattr_argument and setattr_device
2016-05-03 16:27:42 +08:00
Sebastien Bourdeauducq
caf774579a
environment: refactor
2016-04-16 19:31:07 +08:00