X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=trunk%2Flttv%2Fdoc%2Fdeveloper%2Flttng-lttv-compatibility.html;h=44e1e43fd03b14cf57267f4f6efa7c84103fcd35;hb=a3dcc2067bee784adce0d7790088a69c214d4ec1;hp=da4e76a6e7dd86579b529e128150321d19ca1423;hpb=15439ec7d9b90d5684f1031790709afa98f32499;p=lttv.git diff --git a/trunk/lttv/doc/developer/lttng-lttv-compatibility.html b/trunk/lttv/doc/developer/lttng-lttv-compatibility.html index da4e76a6..44e1e43f 100644 --- a/trunk/lttv/doc/developer/lttng-lttv-compatibility.html +++ b/trunk/lttv/doc/developer/lttng-lttv-compatibility.html @@ -2928,6 +2928,8 @@ powerpc64, s390, sparc, sparc64.
0.32
0.33
0.34
+0.35
+0.36
0.53
@@ -2956,7 +2958,306 @@ LTTng 0.28 includes a small build fix.
LTTng 0.29 supports 2.6.27-rc8.
LTTng 0.32 supports 2.6.27-rc9 and adds a spinlock/irqoff buffering scheme (can be used with lttctl -T relay-locked).
-LTTng 0.33, 0.34 : checkpatch.pl coding style fixes.
+LTTng 0.33, 0.34 : checkpatch.pl coding style fixes. 0.35, 0.36 : size_t cast.
+ + + + +x86, alpha, arm26, avr32, cris, frv, h8300, m32r, m68knommu, parisc, sh, sh64, +um, v850, xtensa.
+arm, i686, ia64, m68k, mips, mipsel, x86_64, powerpc 405, +powerpc64, s390, sparc, sparc64.
+ + + + + +0.11.0
+ + +0.38
+ + +0.53
+0.54
+ + +obsolete
+ + +0.6
+ + +obsolete
+ + +2.0
+ + +2.6.27
+ + +LTTng 0.38 and LTTV 0.11.0
+
+I just cleaned up the LTTng trace format heavily, got rid of the +heartbeat timer (by checking for overflow at the tracing site), got rid +of the "special" compact channel; it removed about 5 FIXMEs in LTTng +(cpu hotplug and compact channel related). Everything is compact now :
+
+This is much more compact than the previous format, and permits a +"tracer debug mode" in menuconfig which enables the "event size" field, +which helps cross-checking the size expected by the userspace tool and +the size written by the kernel.
+
+Note that this "event size" field can eventually be enabled on a +per-event or per-channel basis. This will probably be useful to encode +"binary blobs"...
+
+I also cleanup up the subbuffer header to make is much smaller than the +previous one by removing unneeded information.
+
+I renamed the "facilities" channel to a better name : "metadata". It +contains marker descriptions.
+
+The trace major number is bumped to "2" and is completely incompatible +with old LTTV.
+ + + + +x86, alpha, arm26, avr32, cris, frv, h8300, m32r, m68knommu, parisc, sh, sh64, +um, v850, xtensa.
+arm, i686, ia64, m68k, mips, mipsel, x86_64, powerpc 405, +powerpc64, s390, sparc, sparc64.
+ + + + + +0.11.1
+0.11.2
+0.11.3
+ + +0.39
+0.40
+0.41
+0.42
+0.43
+0.44
+0.45
+0.46
+ + +0.53
+0.54
+0.55
+0.56
+ + +obsolete
+ + +0.6
+ + +obsolete
+ + +2.1
+ + +2.6.27
+2.6.27.2
+ + +LTTng 0.39 and LTTV 0.11.1 fixes 32-64 bits subbuffer header portability.
+LTTng 0.41 reintroduces the formal verification fix, which solves the +case where the reader thinks the uncommitted subbuffer is fully committed. +Unlikely to happen, but could, with small buffers especially.
+ + + + +x86, alpha, arm26, avr32, cris, frv, h8300, m32r, m68knommu, parisc, sh, sh64, +um, v850, xtensa.
+arm, i686, ia64, m68k, mips, mipsel, x86_64, powerpc 405, +powerpc64, s390, sparc, sparc64.
+ + + + + +0.11.4
+0.11.5
+0.11.6
+ + +0.47
+0.48
+0.49
+0.50
+0.51
+0.52
+0.53
+0.54
+0.55
+0.56
+0.57
+ + +0.53
+0.54
+0.55
+0.56
+ + +obsolete
+ + +0.6
+ + +obsolete
+ + +2.2
+ + +2.6.27.4
+2.6.27.6
+ + +LTTng 0.47 and LTTV 0.11.4 now saves the event lost count in the subbuffer +header. It's printed as a lttv warning when encountered. LTTng 0.47 also +implemented specialized trap probes.
+LTTng 0.49 is a compile fix for userspace markers.
+LTTng 0.50 fixes immediate values by reverting the "jump patching" version of +immediate values. They were always on, and therefore broken. It also +reimplements tracepoint, marker and imv mutexes.
+LTTng 0.51 implements timestamping updates.
+LTTng 0.53 implements a timer-based generic tracing clock, also includes +various fixes.
+LTTng 0.54 fixes the MIPS get_cycles_rate() and also change the freq_scale +variable from a multiplier to a divisor.
+LTTng 0.57 fixes the modification done to offset and commit count counters +following formal verification so the overflow is dealt with correctly. It was +causing problems on 32-bits machines after 4GB worth of data going through a +buffer.
+ + + + +x86, alpha, arm26, avr32, cris, frv, h8300, m32r, m68knommu, parisc, sh, sh64, +um, v850, xtensa.
+arm, i686, ia64, m68k, mips, mipsel, x86_64, powerpc 405, +powerpc64, s390, sparc, sparc64.
+ + + + + + +0.11.4
+0.11.5
+0.11.6
+ + +0.58
+0.59
+0.60
+0.61
+0.62
+0.63
+0.64
+ + +0.58
+0.59
+ + +obsolete
+ + +0.6
+ + +obsolete
+ + +2.2
+ + +2.6.27.7
+2.6.27.8
+ + +LTTng 0.58 implements debugfs-based trace control which will gradually replace +the netlink-based control.
+ltt-control 0.58 expects the netlink negative error values.
+LTTng 0.59 implements an exclusive wait poll to fix thundering herd problem and +help scalability.
+ + + + +x86, alpha, arm26, avr32, cris, frv, h8300, m32r, m68knommu, parisc, sh, sh64, +um, v850, xtensa.
+arm, i686, ia64, m68k, mips, mipsel, x86_64, powerpc 405, +powerpc64, s390, sparc, sparc64.
+ + + + + +0.12.0
+0.12.1
+0.12.2
+0.12.3
+0.12.4
+ + +0.65
+0.66
+0.67
+0.68
+0.69
+0.70
+0.71
+ + +0.60
+0.61
+0.62
+0.63
+ + +obsolete
+ + +0.6
+ + +obsolete
+ + +2.3
+ + +2.6.27.8
+2.6.27.9
+2.6.27.10
+ + +Channels are now dynamically allocated at runtime by LTTng.
+Marker IDs are now per channel.
+ltt-control 0.61 changes the command line arguments. See updated QUICKSTART.
+LTTng 0.68 implements /mnt/debugfs/ltt/write_event for basic userspace tracing.
+LTTV 0.12.3 updates the filter for channel_name.event_name, adds channel.name= +support and event.subname= support.
+LTTV 0.12.4 fixes marker support so it handles disabled channels.
+ltt-control 0.62 fixes ash newline support in ltt-armall/ltt-disarmall. +This is expecially useful for busybox.